Welcome to the store! This 2-in-1 receiver transmitter features: Embedded ARM926EJ‑S core with 4KB Lcache and 4KB Dcache. Supports stereo codecs. Supports HFP, HSP, A2DP, AVRCP, and SPP profiles. Noise reduction and echo cancellation. Multi-band equalizer configuration. Supports packet loss concealment. Multipoint HFP and A2DP. Voice prompt support. Integrated lithium battery charger supports 300mAh fast charging and overcharge protection. Supports audio equipment for audio input, wireless audio receiving and transmitting. Supports automatic searching for connected Bluetooth devices, wireless audio transmission. Built-in enhanced signal transmission circuit for faster and more stable continuous audio connection. Bluetooth 5.0, low power consumption. Compatible with dual lossless audio formats. AUX OUT, headphone support. Automatic memory connection function for easier operation and more convenient connection. Built-in battery for super long battery life. Smart compatible with Android/IOS phones/Pads and all Bluetooth audio devices. Supports connecting 1 mobile phone. Product connection is simple, without any tedious driving and APP downloading. Item Type: 2-in-1 Receiver Transmitter Material: ABS Weight: Approx. 79g/2.8oz Support Protocol: A2DP, AVRCP, HFP, SPP HID Receiving Operating Current: ≤ 43mA Transmitting Operating Current: ≤ 60mA Standby Current: < 18mA Battery Type: Polymer Lithium Battery Built-in Battery: 600mAh Charging Current: 300mA Endurance: > 8h Bluetooth Distance: > 10m/32.8ft (open space) Charging Mode: Micro USB 5V/0.5A Output Connection: 3.5mm Stereo Interface Input Connection Mode: 3.5mm Stereo Interface Compatible with Android/IOS phones/Pads and all Bluetooth audio devices. Audio devices with audio input interface Package Includes: 1 x B6 Bluetooth 5.0 Adapter 1 x 2 in 1 Audio Cable 1 x 3.5mm Audio Cable 1 x Micro USB Power Cable 1 x Manual