Bluetooth Receiver Transmitter Car Bluetooth Transceiver Two In One Bluetooth Adapter Product parameters: Charging voltage: 5V Charging current: 150mA Working current: 35mA Shutdown current: 41uA Charging time: about 2H Working hours: about 7H Battery capacity: 280mAh Bluetooth version:Version 5.0 Bluetooth sound processing: with DSP technology and A2DP (Advance Audio Distribution Profile) function Bluetooth frequency: 2.402-2.480GHz Bluetooth transmission distance: straight line 10M Effective distance of bluetooth microphone: 0.5-2M Bluetooth transmit output power: 6dbm 1.Bluetooth Bluetooth V5.0 2. The launch state supports two Bluetooth devices to connect and play at the same time 3. Support bluetooth receiving/support bluetooth transmitting 4. Clear all paired Bluetooth information 5. Automatically connect back to the paired Bluetooth device when powered on 6. Five minutes without device connection, automatic shutdown 7. The music playback time is about 7 hours when fully charged 8. Bluetooth supports A2DP, AVRCP, HFP, HSP 9. Support Bluetooth stereo music DSP technology 10. AUX audio input/audio output 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image 2. Due to manual measurement, please allow 1-3cm deviation Size: 65 x 39 x 16mm Color: black Quantity shipped: 1 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.