1Embedded ARM926EJS core,4KB Lcache and 4KB Dcache. Supports stereo codecs. Supports for HFP, HSP, A2DP, AVRCP, and SPP profiles. 2Noise reduction and cancellation. Multiband equalizer configuration. Support packet loss hiding. Multipoint HFP and A2DP. Support for voice prompts. 3The integrated lithiummode battery charger supports 300 mAh fast charge and over discharge protection. 4Support audio input audio equipment, wireless audio receiving and transmission. Support automatic search connected Bluetooth devices, wireless audio transmission. 5Builtin enhanced signal transmission circuit, faster and more stable continuous sound connection. Bluetooth 0, low power consumption. 6Compatible with dual lossless audio formats. AUX OUT, Earphone is supported. Automatic memory connection function, easier operation, more convenient connection. 7Builtin battery, super long battery life. Smart compatible for Android/IOS phones/Pads, and all Bluetooth audio devices. 8Support to connect 1 mobile phone. Product connection is simple, without any tedious driving and downloading of APP.