Check the listing for details. Mini Wireless Bluetooth Car Kit Hands free 3.5mm Jack AUX Audio Receiver Adapter. Condition: New. Listed at 5.75 USD. Mini Wireless Bluetooth Car Kit Hands free 3.5mm Jack AUX Audio Receiver AdapterPairing timeout shutdown: shutdown after 5 minutes of pairing status.Low voltage reminder: when the voltage is less than 3.2v, it is reminded every 5 seconds, and 3.1v is off. System Status:Power off: MFB long press for 3 secondsVolume up: short press VOL+Volume reduction: press VOL-Switching languages: double-click and hold MFB in the pairing state (red and blue lights flashing) Music Control:Play pause: press MFBLast song: VOL- press for 2 secondsNext song: VOL+ 2 seconds Telephone Control:Answer the phone: press MFB when callingReject the call: the duration of the call is MFBUnsigned redial: double-click the MFB key, then press MFB to cancel the dialing Led Display:Power-on pairing: red and blue lights flashing alternatelyConnection status: blue light flashes slowly (5 seconds 1 time)Low voltage: red light flashing (0.5 SEC 1) Working Current:Status parameter (4.v) (3.4v)Rated operating voltage 4V 3.4VMatching state current 4.33 ma-20.56 mA 4.47 ma-22.03 mAStandby current (bluetooth connected) 0.43 ma-8.31 mA 0.41 ma-8.74 mAPlay music current 19.04 ma-23.21 mA 22.85 ma-23.74 mAThe call current is 23.82 ma-24.05 mA 25.19 ma-25.78 mACharging current 100.0mA. 100.0mAPower off current 1.4uA 1.1uA This kind of bluetooth noise-reducing answer, supports any key to answer, connects effectively with the smartphone, automatically matches the connection program, and maintains the connection state when charging. - sound insulation, high definition call: identify sound frequency through intelligent control chip, and generate reverse signal to filter out external noises (noise and wind) within the range of non-human voice frequency. High definition calls in any noisy environment. Very beautiful sound quality gives you different enjoyment! Package Included:1*Bluetooth audio receiver1*3.5mm to 3.5mm adapter1* Micro USB Power Cable (Note:Random Color) On Feb-18-19 at 18:28:28 PST, seller added the following information: