Features 1.BLUETOOTH SUPPORT: Bluetooth sound receiver transmitter is Bluetooth version 5.3, compatible with most smartphones and tablets. 2.RECEIVER MODE: Bluetooth sound digital to analog converter supports bluetooth receiver mode, let wired devices become wireless. 3.TRANSMIT MODE: Wireless bluetooth sound receiver transmitter supports bluetooth transmit mode, suitable for PC, TV, amplifier. 4.INPUT INTERFACE: Bluetooth sound adapter is a digital to analog converter with coaxial for toslink input interface. 5.SUPPORT FORMAT: Coaxial bluetooth sound receiver transmitter supports memory card, U disk playback, you can choose according to the situation. Specification Item Type: Bluetooth Sound Receiver Transmitter Material: Aluminum Alloy Remote Control Battery Type: Built in 160mAh CR2025 Button Cell (included) Bluetooth Name: LY35 Bluetooth Version: V5.3 Bluetooth Protocol: A2DP, AVRCP, HFP, HSP Sound Decoding Format: SBC USB, Memory Card: WMA, WAV, FLAC, APE, MP3, Etc. Frequency Range: 2400‑2483.5MHz Input Or Output Interface: 3.5mm, Optical, Coaxial, USB, Memory Card Memory Card: Maximum Support 64GB (not Included) Support Devices: Cell Phones, Computers, TVs, Projectors, Amplifiers, Set Top Boxes, for PS4, Etc. Package List 1 x Receiver Transmitter 1 x RCA Sound Cable 1 x Fiber Optic Cable 1 x Remote Control 1 x 3.5mm Sound Cable 1 x Power Supply Cable 1 x Instruction Manual