1.COTT-QD60 high sensitivity audio monitoring microphone specially designed for public security organs and procuratorate industry for synchronous monitoring recording. 2.Classic black and white with clear lines, the overall design does not lack of fashion and retro-style. 3.Using advanced squelch circuit design, super strong noise reduction, its ability which can resist to the squeal is strong. 4.High fidelity silver plated vibration membrane capacitor microphone, audio monitor range up to 100 square meters. 5.Adopt Dolby Pro Logic surround sound system, equip with high-speed voice processing units, two level dynamic noise reduction processing, and automatic gain circuit to enhance distance voice, so that the effect of audio playback is more clear. 6.The "electronic noise dynamic closed loop suppression circuit" of unique design, completely eliminate "hiss" electronic noise. 7.The latest digital module maximally improves the processing time, solves the delay situation of previous digital sound pick-up . 8.Long audio signal transmission technology, use the RVVP3*0.5mm2 shield cable, it is distortionless within 3km. 9.Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc. 10.Widely used in public security organs, procuratorate industry, banks, schools, interrogation room, prison and other indoor environment for synchronous video audio monitor recording.
Product Name Android MiniPOS Aisino A80 OS Android 7.1 Secure operating system Processor 32-bit, Quad-core, 1.1Ghz application processor High performance secure processor Memory RAM: 1GB (optional 2GB) ROM: 8GB (optional 16GB) Display 5 Color screen 1280 720 Touch Screen Capacitive touchscreen Keys 1 Power key 1 Function key 3 Touch keys WIFI 2.4GHz IEEE802.11b/g/n Communications 4G 3G 2G Bluetooth BT 4.X Card Readers IC card reader NFC reader Camera 2 MP Rear Camera 1D/2D barcode scan Optional: 5MP rear zoom camera GNSS GPS GLONASS BeiDou Indicator Lights 4 NFC LEDs 1 Charging indicator Audio Speaker Microphone Card Slots 1 SIM 2 PSAM Battery 3.85V/3000mAh Dimensions 150 75 16mm L W H Weight 220g Peripheral Port 1 USB OTG, Type-C, 5V Environmental Operating temperature: 0 ~ 50 Storage temperature-20 ~ 70 Relative humidity 5%~95%, Non-condensing Optional Configurations ASD18 Bluetooth Printer Docking Station
Model: V-950 Work Frequency : 600-930MHz Mudulation Mode : Broadband FM Channels : 200 Channel Frequency : 300KHz Frequency Stability : �± 0.005% Dynamic Bound : 100 dB Max Excursion : �± 45KHz Frequency Response : 80Hz - 18KHz (3±dB) S/N : > 105dB Operation Distance : About 100m Working Environment Temperature : 10 ± 50
Features: 1.9 ms ultra-low latency,20 m barrier-free reception,it can use outdoor live broadcast and take a small video. 2.It doesn't need APP,plug-and-play,one-click connection,easy to wear. 3.Intelligent noise reduction,long endurance of 10 hours,easy to cope with all kinds of noisy environment,worry-free shooting,meet your needs for a day. 4.360 full pointing pick up,record every detail of the sound. 5.Small and convenient,it compatible with various devices,support mobile phone, tablet, camera, notebook,etc
We have good quality Used and New Laptops of all brands. Product Name Used laptops Processor CPU Series: Intel Core i7 4-generation family CPU Type: Intel Core i7 4702MQ CPU frequency: 2.2GHz Core frequency: 3200MHz Bus Specifications: DMI 5 GT / s Three cache: 6MB Core Architecture: Haswell Core / thread count: quad-core / eight thread Storage Device Memory Capacity: 4GB (4GB Ã?? 1) Memory Type: DDR3L (low voltage version) 1600MHz Hard disk capacity: 500GB Hard Description: Support the expansion turn mSATA SSD hard drive Drive Type: No built-in optical drive Display Touch screen: does not support touch Screen Size: 14 inches Aspect Ratio: 16:9 Screen Resolution: 1366x768 Screen technology: LED backlit, matte glare mask Graphics Graphics Type: Dual Graphics (fever-level graphics card + integrated graphics) Graphics chip: NVIDIA GeForce GTX 760M + Intel GMA HD 4400 Memory Capacity: 2GB Memory Type: GDDR5 Memory Interface: 128bit Number of stream processors: 768 Multimedia devices Camera: 720p HD webcam Audio System: Built-in audio chip Speaker: Built-in speaker Microphone: Built-in microphone Network Communications Wireless LAN: 802.11b/g/n wireless protocol Wired LAN: 100Mbps Ethernet card I / O interfaces Data interface: 1 Ã?? USB2.0 +2 Ã?? USB3.0 Video Interface: VGA, HDMI Audio interface: headphone / microphone combo interface Other interfaces: RJ45 (network interface), power connector Reader: Multi-in-1 card reader Input Devices Pointing device: Touchpad Keyboard Description: Full-size keyboard Power Description Battery: 6-cell lithium battery, 5900 mA Life time: 5 hours, the specific time depending on use environment Power adapter: 100V-240V 90W AC power adapter adaptive Exterior Laptop Weight: 2Kg Length: 339.2mm Width: 239.5mm Thickness: 26.4mm Shell material: composite material Case Description: Black Notebook accessories Packing list: Host x1 notebook Power adapter x1 Power cord x1 Manual x1 Warranty card x1 Shipping DOCS 1. Commercial Invoice 2. Packing list 3. Certificate of Origin 4. Bill of Loading 5. Form A/Form E 6. Other documents are according to customer's
Classic Design Home Professional Indoor Outdoor Portable RGB tws mini Speaker Box with Microphone 1. It is a Portable Outdoor Mini Bluetooth Speaker. It is small, light, waterproof but with powerfull bass. It is a backpack speaker, a bicycle speaker. And the most amazing thing is it is a magnetic speaker. 2. Magnetic Bluetooth Speaker: The base of this Portable outdoor mini speaker comes with 4 super strong magnets. It can be attached to the iron-coataining object, and can be placed at will, play with idea and creat your interesting life. 3. Portable Small Bluetooth Speaker: Light and compact. Small and convenient to carry. 4. Bicycle Speaker: The speaker comes with a silicone carrying handle, you can easily hang it on the handlebars of the bike. 5. Small But Powerful Speaker: It come with 6W powerfull loadspeaker unit. The special passive radiator edge around the speaker unit create powerful bass. 6. 360 full-range sound effects, satisfy your picky ears: Professional-grade branded loudspeaker with clear and dynamic sound,superb overall balance, full bass and loud treble. 7. IPX4 Waterproof: Carry it to anywhere anytime you want. You don't need to worry about raining or splashing
New Mini LED Light Portable Wireless Speaker IPX5 waterproof Bluetooth Speaker strong bass Zealot speaker S53 Main Features: 1.Bluetooth music player 2.Support TF card 3.3.5mm stereo jack can connect Audio player 4.Portable, easy to carry 5.Good touch feeling 6.Colorful LED lighting Parameter: Bluetooth version: 5.0 Charge voltage:DC5V/1A Speaker:4 10w 57mm Transmission distance:10M Frequency response: 20Hz-20KHz Outpower: 10W S/N: 90dB Working voltage:3.7V Distorsion:1% Talking time:5H Music time:4H Standby time:>90days Charge time:2h Battery capactiy:3000mA
CCTV security audio monitoring microphone, mini computer microphone.
Features: 1. high definition low noise processing chips 2. superior ambient noise suppression microphone 3. adjustable sensitivity metal 4. explosion sites dedicated 5. built-in noise reduction circuit 6. power polarity protection circuit; Specifications: BrandChinasky Model number506 Work voltage6 ~ 14vdc Work current12ma Frequency200 ~ 10khz Output impedance600| Pickup range50~100m2 Work temperature-20 Package dimension45x45x19mm MaterialMaterial ; What is our micrphone for? This audio surveillance microphone can be added to any surveillance system with audio input. The cctv microphone is typically used as an add-on to cctv cameras that do not have built-in audio. ; This microphone is stand alone as it does not rely on the power source from a security camera. Plug and play cables can be used with these microphones to easily run both the audio and power centrally back to the dvr. ; The mic comes with its own 12v dc power supply and can be used with cctv camera pros stand alone surveillance dvrs or pc based dvrs, such as geovision. ; Because the microphone has a female rca input and most dvrs have rca inputs for the microphone inputs, we include two bnc to rca converters for each end of the plug and play cable. Order the cable with this microphone and the converters are included. See the below audio surveillance connection diagram for more information. Size:45x45x19mm
This cable is high in professional stage and studio work, such as keyboard or guitar. they are used for connecting components.
Microphone
Frequency rangeú¦730~950mhz Channelú¦96*2 Stabilityú¦ía10ppm Sensitivityú¦-90dbm Frequency responseú¦40~20000hz S/n ratioú¦í²110db Outputú¦balance output and un-balance output Modulation:fm Working range:150m
Mute control:noise-locking Frequency response:50hz-13khz Stability: ía0.005% S/n ratio:>70dbm T.H.D.:05%(1k) Channel:two Sensitivity:-80dbm Working range:100m Receiver power supply:dc 12v/300ma Microphone pwer:9v Output power:20mw Frequency range:220mhz-270mhz Output:single mix output
Wireless and wired microphone, pa amplifier, meeting microphone.
Microphone, amplifier.
Microphone, mixer, stands, amplifier.
- Operating System : Android 9.0 - GPS : Yes - CPU : MTK6580 Quad Core - RAM : 2GB - ROM : 32GB - Screen Screen : 10.1 inch Capacities Screen - Resolution : 1280 x 800 Pixels - Network Wi-Fi : Yes, 802.11b/g/n Wi-Fi - 3G : YES, WCDMA 2100MHZ - Bluetooth : Yes, Bluetooth 4.0 - Audio : MP3, WMA, OGG, etc. - Video : AVI, MP4, WMV, etc. - E-book : TXT, EPUB, PDF, etc. - Picture : JPG, GIF, BMP, PNG, etc. - Application Google Play (Android Market) : MSN, Skype, Gmail, Apps, etc. - OS Language : Multi-Language - Front Camera : 2.0MP Ooptional : 5.0MP) - Rear Camera : 5.0MP (Optional : 8.0MP) - Battery Type: Li-ion Polymer - Battery Capacity : 6000mAh - Charging Time : 2 ~ 3 Hours - Standby Time : Above 96 Hours - Work Time : Around 5 ~ 8 Hours - Power Adapter Output : 5V / 2A - Capacity Extension : TF / Micro SD, Up To 32G - G-sensor : 360 Degree Gravity Sensor - Certification : CE, FCC, RoHS - Speaker : Yes - Microphone : Yes - 1 x TF Card - 1 x DC Power Supply - 1 x Micro USB Port - 1 x 3.5mm Earphone Port
Uhf wireless microphone/ wireless microphone/ wireless karaoke microphone Selling points: 1. Uhf 99 channels 2. Customerized uhf wireless microphone Solution 1: with wireless microphone Solution 2: with body pack transmitter and headset microphone / lapel microphone 3. Frequency: 670-690mhz, transmitting distance: 70-100m, transmitter battery 12 hour Model: bl-1003 mini uhf wireless microphone system Features: Receiver Power supply: ac100~240/45~60hz External dc power: 16~20v Power consumption: 5w S/n ratio: >90db; p/n ratio: >80db; f/n ratio: >80db Receiving sensitivity: 5dbu(sinad=20db) Transmitter Transmitter power: 10mw Modulation mode: fm Maximum deviation: ± 50khz High harmonics: more than 40db(with carrier) Battery voltage: aa 1.5v× 2/9v Battery life: 12 hour Power switch noise: provide with perfect switch noise deducted circuit Main function Frequency range: uhf 670-690mhzmhz Frequency stabilization: < ± 30ppm Dynamic range: >90db Total harmonic distortion: < 0.5% Frequency response: 40hz~20khz± 3db Audio outpout: separate type: 0~± 500mv Mix type: 0~± 300mv
Use 2.4GHz ISM frequency band. 350 m transmission range without any holdback. Support DVD, DVR, IPTV, CCTV Camera, Satellite receiver, Digital STB and other AV output devices. Supports video transmission of PAL/ NTSC system and stereo audio transmission, Pictures received are clear, flamboyant and stable. Machine dimensions: 10 & 161; 8.5 & 161; 3.0 cm.
Microphone & audio equiments.
