Supported protocols: A2DP, AVRCP, HFP, SPP HID.Receiving working current: 43MA.Transmitting working current: 60MA.Standby current: 18MA.Built-in battery: polymer 600MAH.Charging current: 300MA.Battery life: 8H.Bluetooth distance: 10M (open space).Charging method: Micro USB 5V/0.Output connection method: 3.5MM stereo interface.Input connection method: 3.5MM stereo interface.Compatible with: Android, IOS system mobile phones and PADs, and all Bluetooth audio devices, audio equipment with audio input interface.Embedded ARM926EJ-S core, 4KB lcache and 4kB DcacheSupport stereo codecSupport HFP, HSP, A2DP, AVRCP, and SPP profilesNoise reduction and echo cancellationMulti-band equalizer configurationSupport packet loss concealmentMulti-point HFP and A2DPSupport voice promptsIntegrated lithium mode battery charger supports 300 mAh fast charging and over-discharge protectionSupport audio equipment with audio input to achieve wireless audio reception and transmissionSupport automatic search and connection of Bluetooth devices to achieve wireless audio transmissionBuilt-in AEC echo cancellation and ANC noise cancellation circuit, gorgeous stereo, more pure sound qualityBuilt-in enhanced signal transmission circuit, faster and more stable connection without interruptionCompatible with dual lossless audio formatsSupport AUX OUT, EarphoneAutomatic memory connection function, simpler operation and more convenient connectionBuilt-in battery, ultra-long battery lifeBluetooth 2.1, low power consumptionLive voice prompts, simple and clear operationIntelligent compatibility, Android, IOS system phones and PADs, and all Bluetooth audio devicesSupports connection to 1 mobile phoneEasy product connection, no tedious driving and downloading APPPackage Contents: 1x B6 Bluetooth transceiver + 1x one-to-two audio cable + 1x 3.5MM audio cable + 1x Micro USB power cable + 1x operating instructions + 1x neutral packaging