2 in 1 Bluetooth Receiver Transmitter APTX 3.5mm AUX Wireless Audio Adapter, 501 Original

Feature:1. High end imported chip QCC3005.2. The appearance of the product is light, and it has a bent audio head, which is easy to use and install.3. Supports APTX and APTX LL playback.4. Unique 3.5mm audio output interface design, more flexibility.5. Hands free call, one click answer.6. Built in 110mAh battery.7. Noise reduction and echo cancellation with the latest CVC speech enhancement technology of QCC.8. Support multipoint connection (connect voice and music connections of two mobile applications).9. Support voice to answer / reject calls.10. Support SBC, MP3, APTX, APTX-LL audio format.11. The connection of the product is simple, without any tedious driving and downloading of APP;Specification:Bluetooth master: Qualcomm QCC3005Bluetooth version: Bluetooth v5.0Support protocol: A2DP 1.3,AVRCP 1.6, HFP 1.7, HSP 1.2Working frequency: 2.402GHz -2.480GHzPower level: Class IIReceiving sensitivity: - 90dB at 0.1% BERWorking current: ＜ 25mABuilt in battery: 110mAhCharging current: less than 100mACharging time: about 1.5 hoursAudio performance: APTX/APTX LL/AAC/SBCEndurance time: ＞ 5hBluetooth distance: ＞ 8m (open space)Charging mode: Micro USB 5VOutput connection mode: 3.5mm stereo interfaceCompatible: Android, IOS mobile phone and pad, and all Bluetooth audio devicesSize: 95 * 18.5 * 12mm/3.74*7.28*4.72\\'\\'Weight: 11gB30 Functions:Working status indication:1. Blue light flashes quickly: the device is not connected and waiting for pairing.2. Blue light blinks slowly: Bluetooth device is paired and connected.3. Red light on for a long time: charging state, red light off after full charge.4. On / off: power on, press and hold key 3S for power on. Off: under power on state, press and hold key 3S for power off.5. Key function: Bluetooth connection music play, music play, short press key play / pause6. Call function: short press the key to answer /hang up the call, double-click the key to call back.Note: Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.