Product Specifications: Product Name: 2-IN-1 Bluetooth Audio Adapter Product Color: White Bluetooth Version: V5.3 Audio Decoding: Support Protocol: A2DP/AVRCP/HFP/ Frequency Range: 2.402GHz-2.480GHz Frequency Response: 10Hz-20KHz Audio Interface: 3.5mm AUX Stereo Transport Distance: 10M Battery Capacity: 250mAh(5V/1A) Music Time: About 8hours Charging Time: About 2hours Charging Interface: Type-C (Support Audio Data Transmission) Support Mic: Yes, RX Receiver Mode With Mic Handsfree Calling (TX Transmitter Mode is not supported Mic) Product Size: 95 x 44 x 13MM Core Functions: Bluetooth Audio Receive(RX)+Bluetooth Audio Transmitte(TX)+Multipoint Connect(TX) RX Receiver Mode For: Car Kit/Wired Speaker/Home Speaker/Speaker Power amplifier/Headphone ... TX Transmitter Mode For: Airplane/TV/PC/Projector/Power amplifier/TV Box /Bluetooth Headphone/Earphone/Bluetooth Speaker ... Material: Plastic Package Contents: 1 x Audio Adapter 1 x AP Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.