Note: The optical and Coaxial cable is not included, U disk and TF card is not included too Note: Remote control can't turn on the device, only can turn off and other function!!! Product Name: Multi function Bluetooth audio adapter Product version: Standard M9/Ultimate M9 Pro Product Model: M9 (without FM radio function)/M9 Pro (with FM radio function) Bluetooth Version: Bluetooth V5.1 Chip: MVSILICON Battery: 3.7V/1200mAh(UN38.3) Charging Time: About 1.5 hours Using Time: Listen to music for about 8-10 hours and stand by for 30 days Transmission Range: 30-50m (barrier free) Interface: 3.5mm AUX/2RCA/USB/TF/6.5mm MIC Input Parameter: DC 5V-1A(MAX) Support Protocol: A2DP/AVRCP/HFP/SBC Support Protocol: MP3/WMA/SBC/WAV/DTS/A52/FLAC/AAC/AIF/AMR/APE Using Method: Drive free Product Color: Silver black Product Material: High strength fireproof - V0 PC (70%)+ABS (30%) Basic Functions: Bluetooth receiver, Bluetooth transmitter, U disk play, TF card play, infrared remote control, NFC touch, microphone singing, adjustable high and low pitch, HD digital display,DSP,NFC Support Devices: All kinds of speakers,desktop computer, laptop, TV, power amplifier,projector Package included: 1x Bluetooth adapter. 1x 3.5MM cable. 1X 3.5mm-RCA cable 1x Type c cable 1x Remote Control. 1x User manual. 1x Retail Package.