Bluetooth version: v4.2 working distance: 10m Battery: 3.7v 50mah bulit-in lithium battery Charging voltage: dc 5v Charging time: about 1 hour Charging currency: =15ma standby currency: =2ma Working temperature: -40 to +80 Play time: =3 hours talk time: =4 hours Standby time: about 40 hours
Supplier: Headphones, earphones, microphones used for pc
Microphone: 6x5/54 3db Frequence response: 20-20000hz Sensitivity: 102db Lmpedance: 32/hz Puissance maximum lnput: 300mw Jack(mm): ¦3.5mmstereo Loudhailer: 40mm Cordless infrared headphone system Up to 50 meters reception range which is according to the surrounding and barriers between the transmitter and the headphone. Transmitter of stereo effect, multi connectors(headphones) are available. Three options for transmitting frequency in order to avoid noise. Av adapting wire, workable to those without headphone jack. Portable and fashion type Blister
Mic cimension: 6.03.0 mm Sensitivity: -40db3db Directivity: omnidirectional Lmpedance : 2.2k+ Loudhailer:32mm Impedance: 32ohm Frequency response: 20~20khz Sensitivity: 112.0 db3db(1khz) Input plug diameter: 3.5mm Cord length :about 2.5meters Blister
Type:in-ear dynamic Speaker:ª¦10mm lmpedance:32ohm Sensitivity:108dB S.P.L at 1KHZ Frequency Response:10-22,000Hz Rated POWER:3mW Max.input power:30mW Cord Length:1.5mm Loudhailer:3.5mm http://a170936.s55.gzonet.com/en/Show_Product.asp?Pid=541
Type:in-ear dynamic Speaker:ª¦10mm lmpedance:32ohm Sensitivity:108dB S.P.L at 1KHZ Frequency Response:10-22,000Hz Rated POWER:3mW Max.input power:30mW Cord Length:1.5mm Jack:3.5mm
Supplier: Headphone, earphone & microphone, MP3/4
Buyer: Headphone, earphone & microphone, MP3/4
Supplier: Headphone, earphone, microphone, keyboard, mouse, mp3 player