2 in 1 Bluetooth A2DP Transmitter Receiver 3.5mm Wireless Bluetooth Audio transmitter Adapter for Speaker

Featurechip:CSR57E6Supported protocol:A2DP, AVRCP, HFP, SPP HIDstandby current:?18MAbulti-in battery:Polymer 300MAHplay time:?8H Bluetooth range:?10M(space place)charging way:Micro USB 5V/0.5Aoutput:3.5MM stereo audio portinput:3.5MM stereo audio portCompatibility:compatible with phones and PAD of Android/IOS system, and all  Bluetooth audio devices. Funtion Support all audio equipment with audio input interface, realize wireless audio receiver transmissionSupport automatic search for Bluetooth devices to realize connect, transmit wireless audio transmission                                      Built-AEC echo cancellation and noise cancellation circuit ANC, gorgeous stereo sound more pureBuilt-in enhanced signal transmission circuit, connected faster and more stable Double lossless audio formats compatiblesupport AUX IN/OUTAutomatic memory connected function  , the operation is easier, more convenientBuilt-in battery,Long standbySmart compatible Android, IOS phone system and PAD, and all Bluetooth audio devicesEasy connection?No Need APP and Drivers?Transmitter mode, support 2 devices connectedTransmitter mode support stereo audio Accessories3.5MM audio connecting cableMicro usb charging cableNeutral User manual