ITEM NAME:3.5mm Wireless Bluetooth5.0 Jack Audio Receiver Speaker Headphone Black Description: Support NFC near field pairing, pairing NFC to automatically turn Bluetooth wireless connection on or off, 3.5MM AV audio output interface is more compatible Support U disk The latest power isolation technology ensures perfect sound quality. High-quality audio, let you feel the music of the fever level. Product List Bluetooth Receiver*1 3.5mm Audio Cable*1 One Minute Two Audio Cable*1 USB Data Cable*1 Manual*1 Specification: Material ABS Frequency response range; 10HZ-20KHZ loss Signal to noise ratio; >110db Distortion + noise;