Digital conference system for discussion /audio conference system Sm612c/sm612d is a standard desktop microphone, simply operate, have auto/fifo mode, press the “application” button can make it start. Built-in dsp digital-processing chips can improve ability of sound processing. Excellent immunity to rf interference from mobile phones and rf devices. Chairman unit sm612c Delegate unit sm612d Main features: •pluggable gooseneck microphone with light ring •high sensitivity, effective pick-up range up to 50cm •support multiple chairman and vice-chairman at same time •speech patterns and apply itself is optional, common mode •not any impact on sound quality under long distance transmission •increased reliability with "closed loop - daisy chain" connection topology •system unit support hot plug function •highly resistant to mobile phone interference •chairman unit can override all the active delegate units and approve or reject delegates who request to speak Technical specifications: Pick up range: 0- 500mm Frequency response 40hz-19khz Sensitivity -42db±3db Snr -80db Nonlieardistortion
.Material: q235 / q345 or material equivalent for required standards 2.Voltage : 10kv, 110kv, 220kv, 500kv or others. 3.Antenna support: 3-20 pcs wind pressure: 5-190 km/h 4.Surface coating: hot dip galvanization or painting (special treating for the long duration sea transportation) 5.Welding: co2 welding or submerged arc auto methods 6.Spare parts: parts for connection or installation will be provided 7.Design lifetime: more than 30 years 8.Capacity: 15000 mt per month 9.Type test accepted, pre-shipment test accept 10.Company audit accepted According to customer
m-suturing submerged-arc welding center, straight flange welding machine, nc torch cutting machine, 6-shaft nc tube intersection-cutting line, large drilling machine, pp103 automatic connecting plate production line, hydraulic nc 3-roll plate bending machine. D)certificate:certificate for qualification of construction enteprise, corporate code certificate, business license, credit rank certificate, permit for production of industrial products, permit for production of industrial products, certificate of honor from china unicom, excellent iron tower provider of china unicom, quality management system certification, permit for safety in production, member entity of corporate credit association of qingdao, contract-abiding and promise-keeping enterprise, cqm certification. D)products:steel tower and steel structure. E)experiences: Dar-es-salaam radio & tv tower of tanzania Dar-es-salaam radio & tv tower of tanzania is a quadrangle guyed tower with three layers of guy wires and three working platforms. Tower height: 130m Completion date: 2009.8 Shaoxing municipal radio & television tower in zhejiang province According to customer
Location:seaside city qingdao in east china, close to the port. B)total staff:500 people C)equipment: automatic nc angle iron production line, automatic nc iron production line, 20b hydraulic plate shears, 3200t press machine, 250t trial assembly crane, 20t gantry crane, gantry-type nc planer drilling machine, automatic numerical control, large hot galvanizing line, large assembly platform, band sawing machine, shaping machine, angle iron drilling line, 315 4-column press machine, automatic seam-suturing submerged-arc welding center, straight flange welding machine, nc torch cutting machine, 6-shaft nc tube intersection-cutting line, large drilling machine, pp103 automatic connecting plate production line, hydraulic nc 3-roll plate bending machine. D)certificate:certificate for qualification of construction enteprise, corporate code certificate, business license, credit rank certificate, permit for production of industrial products, permit for production of industrial products, certificate of honor from china unicom, excellent iron tower provider of china unicom, quality management system certification, permit for safety in production, member entity of corporate credit association of qingdao, contract-abiding and promise-keeping enterprise, cqm certification. D)products:steel tower and steel structure. E)experiences: Dar-es-salaam radio & tv tower of tanzania Dar-es-salaam radio & tv tower of tanzania is a quadrangle guyed tower with three layers of guy wires and three working platforms. Tower height: 130m Completion date: 2009.8 Shaoxing municipal radio & television tower in zhejiang province Construction unit: shaoxing municipal broadcasting & tv station Tower height: 168m Construction organization: qing dao histro tower limited company Design organization: institute of architectural design & research of tongji university Completion: 2008.5 According to customer
K5n-f front & center speaker Speaker type: Xtk-f fzront¢er Woofers: 5" pp cone midbass x 2 Tweeter: 25mm silk dome tweeter x 3 Power: 10 - 150 watts Impedance: 4 ohm Frequency response: 45 - 25k hz Sensitivity: 88 db Grill type: Black cloth Finish dimensions: 315 d x 267 w x 332 h(mm K5n-r surround Speaker type: Xtk-r surround speaker Mid-bass: 5 " pp cone midbass x 1 + 3" paper cone fullrange x 1 Tweeter: 25mm silk dome tweeter x 1 Power: 10 - 100 watts Impedance: 6 ohm Frequency response: 85 - 25k hz. Sensitivity: 91 db Grill type: Black cloth Finish dimensions: 165 d x 201 w x 267 h(mm) K12s sub Single down-firing active 12" aluminum driver Dual side-firing 12" aluminum passive radiators 650 watt class d amplifier Usb power jack for easy wireless connection Small internally braced 3/4" hdf sealed enclosure Virtually vibration-free cabinet.
Voice over ip sip (rfc 3261)compliant g711a/u, g.729a/b voice codec dynamic jitter buffer avd, aec, cng in-band dtmf, out-of-band /dtmf (info, rfc2833) support qos Call features call transfer, call waiting, call hold, call forward, cid ect. Phone feature 64-chords polyphonic midi ring tone, mp3 ring tone and playback sound / vibration / sound& vibration call history£¡§inbound / outbound / missed£© phone book (500 records) speed dial (100 records) Applications alarm, calendar, calculator, world time Wireless lan 802.11e wnn / wnn-ps support g.711, g.729a/b, g.726 Wireless lan security wep (64/128bits wpa-psk/wpa2-psk(tkip and aes) md5 for sip authentication(rfc2069/rfc2617) 802.1x(ttls/md5) Network wireless lan site survey simple wlan profile configuration for instant Network connection dhcp/ static ip Management auto/manually provisioning system trace log£¬syslog for exception ntp time synchronization Packed in box of each piece, 10boxes to a carton Carton size:35*32*22.5cm G.W.:5.5kgs N.W.:4.6kgs.
Frequency response: Harmonics radiation:
Product description: Can be used with ordinary telephone conds Stop confirmed sound: 450 hz to 0.7 seconds Insider ringing: 1 seconds, stop for 4 seconds Exterior line incoming call is ringing, vibration, 0.7 seconds to 2.5 seconds for 0.7 seconds 0.7 seconds of vibration pause Power supply: AC220V plus or minus 10%, 50 hz Power consumption: < 15 w Size: 310 mm x 310 mm x 45 mm The main function 1. the whole cord non-blocking exchange. 2.call display function (FSK and DTMF double system compatible). 3. automatic IP phone exhaled, cost savings. 4.exterior line incoming call can direct extension, can be recorded since the 2 section of the voice prompt. 5.breathe more level restrictions; Breathe out time limit; Dial the code limit limits; Password restrictions; Charter code restrictions. 6.can set a variety of flexible service function; Exhale hotline; Don't disturb busy callback; Displacement transfer; Busy a Size: 310 mm x 310 mm x 45 mm
Product description: Power consumption: < 15 w Size: 310 mm x 310 mm x 45 mm The main function 1. The whole cord non-blocking exchange. 2.Call display function (fsk and dtmf double system compatible). 3. Automatic ip phone exhaled, cost savings. 4.Exterior line incoming call can direct extension, can be recorded since the 2 section of the voice prompt. 5.Breathe more level restrictions; breathe out time limit; dial the code limit limits; password restrictions; charter code restrictions. 6.Can set a variety of flexible service function; exhale hotline; don't disturb busy callback; displacement transfer; busy a times; answer the ringing, generation dial perimeter; secretarial services; Rp evictions outside threats music choice. 7.Exchange can be flexible and simple configuration, its configuration is not affected by power outages, can keep unchanged for long. Perimeter switch first to fourth extension of u of a power failure. Warm prompt: This product in use process, in a cool, ventilated, dry, damp places; please note against lightning thunderstorm season, time can put the equipment of the power disconnect from work; at ordinary times is also in order to maintain the line of equipment and line interface is loose, sure can normal use. Size: 310 mm x 310 mm x 45 mm
Up 22. The billing function: Computer interface can intuitively reflect the calls and billed, and provide the query, also has a variety of printing formats, can be simple and easy to through the computer to set the rates, the deposit and the discount period, etc. 23. Strong insert phone: The switchboard can be inserted to clamp down on is on the phone's extension. (outside the switching speed when the extension is busy can plug into.) Size: 440 mm x 230 mm x 80 mm Size: 440 mm x 230 mm x 80 mm
1¡¢microphone: high sensitivity, heart-link shape pointing 2¡¢goose-neck like type microphone can be disassemble, with red-ring indicate light 3¡¢microphone light instruction: turn on the microphone display in red light instruction when display in green indicated the delegate¡¯s speech is limited 4¡¢microphone switch: useful for turning on and turning off the microphone 5, forbid key: can forbid or cancel the speaking delegate (rx-c2700 has this function) 6, built-in loudspeaker Carton
Frequency range:uhf 500-900mhz Modulation mode :fm Channel number :2 channels Frequency stability:161;¨¤0.005% Dynamic range :100db Max modulation:161;¨¤80khz Frequency response :20hz--18khz¡161;¨¤3db) S/n rario:>105db T.H.D161;¨¹0.5% Working range:80-100m(without obstacle) Working temperature range :-10161;230;-40161;230; These are general parameter, it is usually used for karaoke and after using it, you will feel its timbre is clear and reproduce a vivid human voice. We all have known that different places have different frequency range. Our company can produce which is based on your demand
Mc-310 Specifications£º Frequency range: 730-960mhz Automatic transmitter setup channels: 200 Display model: lcd Oscillation mode: pll synthesized Frequency stability: ¡à10ppm Receive mode: superheterodyne Input sensitivity: -90dbm Audio response: 40hz¡«20khz T.H.D. At 1khz: ¡ü0.5% Signal to noise ratio: ¡ý110db Rf output: 10mw(50mw max) Modulation mode: fm Battery requirement: 2¡á1.5v aa size
Lcd digitizer test extended flex cable for iphone 4s 1.This is must have for all cell phone repair tech. 2.The cable is used to brand new lcd digitizer just to find out your brand new digi is damaged or defect before installing 3.Each item is strictly tested and in good condition before shipping 4.This is not an easy job for someone who has no technical skills with disassembling or assembling cellphones/mobile phones so only purchase this item if you know how to install it 5.Highly recommend professional installation. We will not be held responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement parts 6.Fast delivery in 2 working days after confirm payment. 7.Excellent after-sales service. 8.Our company also provide accessories for iphone and ipod and ipad and other digital products. 9.Terms of payment:t/t, western union, paypal. Package included: 1 * extended flex cable for iphone 4s Compatible with: Iphone 4s Package included: 1 * extended flex cable for iphone 4s
7 in 1 set plastic opening tools for iphone 4 4s 5 Specifications 1.Comes with safe packing 2.Reasonable price 3.Excellent after-sale service Features: 1. Repair and replace your parts for iphone 4/4s/5 screen without damaging your phone 2. Use the included section vacuum opener so you don't leave marks or chipping your phone housing 3. Unscrew 2 screws at the bottom of the parts for iphone on either side of charging port 4. Remove the screen with the suction tool. 5. Remove the additional screws to disassemble the main lcd from the digitizer and glass 6. Note: a technician or expert is recommended for the installation, we are not responsible for any damage caused by installation of this accessory. 7.Our company also provide accessories for iphone and ipod and ipad and other digital products. 8.Terms of payment:t/t, western union, paypal. Package included: 2 * hair screw drivers 2 * plastic prying tools 1 * suction vacuum opener 1 * tweezers 1 * scribing Compatible with: Iphone4 4s 5 Retail packaging Package included: 2 * hair screw drivers 2 * plastic prying tools 1 * suction vacuum opener 1 * tweezers 1 * scribing
2g network Gsm:850/900/1800/1900 Dimensions:107 x 50 x 14.5mm Weight:89.5g Size:240 x 260 pixels, 2.2 inches Internal:64 mb Primary:1.3 mp, 1280 x 1024 pixels, led flash Os:os Cpu:32-bit intel xscale pxa272 312 mhz processor 1* original 8100 mobile phone 1* battery charger(us/uk/eu/au standard) 1* battery 1* earphone 1* data cable 1* cd 1* english manual book 1* packing box
Os:microsoft windows phone 8 Size:720 x 1280 pixels, 4.3 inches (~342 ppi pixel density) Primary:8 mp, 3264 x 2448 pixels, autofocus, led flash, Cpu:dual-core 1.5 ghz krait Internal:16 gb storage, 1 gb ram 1* original 8x mobile phone 1* battery charger(us/uk/eu/au standard) 1* battery 1* earphone 1* data cable 1* cd 1* english manual book 1* packing box
Os:android os, v2.3 (gingerbread), upgradable to v4.0 (ice cream sandwich) Size:800 x 1280 pixels, 5.3 inches (~285 ppi pixel density) Dimensions:146.8 x 83 x 9.7 mm (5.78 x 3.27 x 0.38 in) Weight:178 g (6.28 oz) Camera:8 mp, 3264x2448 pixels, autofocus, led flash Cpu:dual-core 1.5 ghz scorpion 1* original one xl mobile phone 1* battery charger(us/uk/eu/au standard) 1* battery 1* earphone 1* data cable 1* english manual book 1* packing box
Os:android os, v2.2 (froyo), upgradable to v2.3 Cpu:1.2 ghz cortex-a8 Internal:16 gb storage Dimensions:132 x 71 x 9 mm (5.20 x 2.80 x 0.35 in) Weight:139 g (4.90 oz) Size:480 x 800 pixels, 4.5 inches (~207 ppi pixel density) Camera:8 mp, 3264x2448 pixels, autofocus, led flash 1* original i997 mobile phone 1* battery charger(us/uk/eu/au standard) 1* battery 1* earphone 1* data cable 1* cd 1* english manual book 1* packing box
Os:android os, v2.2, v2.3, not upgradable to v4.0 Cpu:1 ghz scorpion Sim:mini-sim Dimensions:123 x 68 x 11.8 mm (4.84 x 2.68 x 0.46 in) Weight:164 g (5.78 oz) Size:480 x 800 pixels, 4.3 inches (~217 ppi pixel density) Camera:8 mp, 3264x2448 pixels, autofocus, dual-led flash, check quality 1* original g10 mobile phone 1* battery charger(us/uk/eu/au standard) 1* battery 1* earphone 1* data cable 1* cd 1* english manual book
