ITEM NAME:2-in-1 Bluetooth Transmitter Reciever with 3.5MM Audio 2020 Output And O4Y7 product description: Support agreement: A2DP, AVRCP, HFP, SPP HID Receive working current: ≠¤ 43MA Transmitting working current: ≠¤ 60MA Standby current: ï ¹ ¤18MA Built-in battery: polymer 600MAH Charging current: 300MA Life time: ï ¹ ¥8H Bluetooth distance: ï ¹ ¥10M (open space) Charging method: Micro USB 5V/0.5A Output connection: 3.5MM stereo interface Input connection mode: 3.5MM stereo interface Compatible: Android, IOS system mobile phone and PAD, and all Bluetooth audio equipment, audio equipment with audio input interface †¢ Embedded ARM926EJ-S core, 4KB lcache and 4kB Dcache †¢ Support stereo codec †¢ Support HFP, HSP, A2DP, AVRCP, and SPP configuration files †¢ Noise reduction and echo cancellation †¢ Multi-band equalizer configuration †¢ Support packet loss concealment †¢ Multi-point HFP and A2DP †¢ Support voice prompts †¢ Integrated lithium-mode battery charger supports 300 mA fast charging and over-discharge protection â— Support audio equipment with audio input to realize wireless audio reception and transmission â— Supports automatic search and connection with Bluetooth devices to realize transmission of wireless audio transmission â— Built-in AEC echo cancellation and ANC noise cancellation circuit, gorgeous stereo, the sound quality is more beautiful â— Built-in enhanced signal transmission circuit, fast and stable connection â— Compatible with dual lossless audio formats â— Support AUX OUT, Earphone â— Automatic memory connection function, simpler operation and more convenient connection â— Built-in battery, long battery life â— Bluetooth 2.1, low power consumption â— Real voice prompt, simple and clear operation â— Smart compatible, Android, IOS system mobile phone and PAD, and all Bluetooth audio devices â— Support to connect 1 mobile phone â— The product is simple to connect, without any tedious driver and APP download; The packaging includes: 1*Bluetooth receiver.Bluetooth distance: ï ¹ ¥10M (open space). â— Supports automatic search and connection with Bluetooth devices to realize transmission of wireless audio transmission. â— Bluetooth 2.1, low power consumption. 1 Bluetooth receiver.