ITEM NAME:2 in 1 Bluetooth Audio Receiver Transmitter Chargeable 3.5mm AUX Music Adapter Product Description Description: 2 in 1 Wireless Bluetooth 5.0 Audio Receiver Transmitter Voice Prompt 3.5 mm Stereo AUX Wireless Music Adapter Descriptions: 1. Embedded ARM926EJ-S core, 4kB lcache and 4kB Dcache; 2. Support stereo codec; 3. Support HFP, HSP, A2DP, AVRCP and SPP configuration files; 4. Noise reduction and echo cancellation; 5. Multi-band equalizer configuration; 6. Support packet loss hiding; 7. Multi-point HFP and A2DP; 8. Support voice prompts; 9. Integrated lithium-mode battery charger supports 200 mA fast charging and over-discharge protection. Features: 1. Support audio equipment with audio input for wireless audio receiving and transmission; 2. Support automatic search to connect Bluetooth devices for wireless audio transmission; 3. Built-in AEC cancellation and ANC noise cancellation circuit, gorgeous stereo sound, more pure sound quality; 4. Built-in enhanced signal transmission circuit, faster and more stable connection; 5. Support AUX OUT, headphones; 6. Automatic memory connection function, easier operation and more convenient connection; 7. Built-in battery, long battery life; 8. Bluetooth 5.0, low power consumption; 9. Smart compatibility, for Android, for iPhone and for iPad, and all Bluetooth audio devices; 10. Supports connection to 1 mobile phone; 11. Simple product connection, no need for complicated driver and download APP. Specifications: Supported protocols: A2DP, AVRCP, HFP, SPP HID Receiving working current: ≠¤43mA Transmitting working current: ≠¤60mA Standby current: