Features:brand new and high qualityUsing Bluetooth-compatible5.1 chip design, for stronger compatibility and stability.Bluetooth-compatible receiving (RX), Bluetooth-compatible transmitting (TX), TF Player AUX 3.5 design.Built-in digital to analog chip, support digital optical fiber, coaxial, AUX, RCA interface.Upgrade the NFC function, the mobilephone can be connected with one for touch.Support FM transmission, and the frequency approx 2.4GHz-2.48GHzBuilt-in high-definition microphone, support wireless music listening, hands-free call, navigation. Package Includes:1PC x Host1PC x 3.5mm Audio Cable1PC x RCA Audio Cable 1PC x Power Cord 1PC x Manual Specifications:Bluetooth-compatible Solution: 5.0 EDR, A2DP, HSP, AVRCP Charging voltage: for DC 5VBluetooth-compatible receiving function: connect 1 phoneItem Size: approx 6.9x6.9x2.4cm/ 2.72x2.72x0.94inColor: BlackFeatures: NFC quick Connection note:There might be a bit color distortions due to different computer resolutions.There might be size errors due to different computer resolutions.