Features: Receiving node: Turn wired- devices into wireless Bluetooth-compatible devices, perfect for home/vehicle streaming sound system-; Transmission node: making the wired- audio signal into a Bluetooth-compatible signal and transmit to the Bluetooth-compatible device for output. High Quality Music: This Bluetooth-compatible receiver is equipped with Bluetooth-compatible5.2 chip and uses the new current acoustic isolation technology, so that your traditional speaker can transmit high quality sound wirelessly with no delay. Wide Compatibility: This Bluetooth-compatible5.2 receiver can connect to any power-powered speaker with a standard 3.5mm port or 2RCA port, for ideal- for home theater, stereo- and car speaker, as well as smartphones, Pad and Android- devices. NFC Bluetooth-compatible receiver with built-in NFC chip, you can directly connect with the NFC mobilephone for touch- receiver.During receiver mode- you have full control of the music including answer /hang-up, for play / pausing, track selection, and volume control with buttons-on the adapter controls-. Specifications: Bluetooth-compatible Version: BT5.2, Support NFC Model:D10-NFC Material:ABS Bluetooth-compatible Transmission distance: 33FT/10M Audio Input Modes: USB 2RCA 3.5MM Size: approx 54x54x13.7mm/2.12x2.12x0.54in Power Supply: DC5V Compatible: All Bluetooth-compatible audio devices support A2DP/AVRCP/HFP protocol Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PCx Receiver 1PCx USB Charging-Cable 1PCx 3.5mm Audio Cable 1PCx 3.5mm to -RCA Cable 1PCx Instruction