Item Type: NFC Bluetooth Receiver Material: ABS Frequency Response Range: 10Hz-20kHz Signal to Noise Ratio: >110dB Distortion + Noise: <0.02% Bluetooth Version: 5.0 Interface: Stereo Analog/AUX3.5mm Effective Distance: About 15m Performance: HiFi Level Support: A2DP/AVRCP Package List 1 x Bluetooth Receiver 1 x AUX Cable 1 x RCA Cable 1 x USB Cable 1NFC Connection: Through the builtin chip, you can touch this receiver to directly connect to Bluetooth devices that support NFC. 2Dual Interface: This Bluetooth receiver supports two music interface modes, 3.5mm and RCA audio port to connect more devices. 315M Wireless Connection: It supports wireless connections up to 15m, so you can control music playback from a distance. 4Bluetooth 5.0: Bluetooth 5.0 technology brings faster and more stable data transmission speed to this audio converter. 5Wide Frequency Range: This Bluetooth receiver has a wide frequency response range of 10Hz20kHz.