Features: brand new and high quality Adopt Bluetooth-compatible 5.0 chip; support wireless reception transmission, TF card for play ; Support three modes of USB+AUX+FM output; with FM transmitter, the car supports radio connection, there are 3 frequency points by default (FM87.8/88/91.6); Support TF card reading function, data copying and other operations can be performed on the computer; Built-in 160mAh capacity battery, you can listen to songs continuously for about 5~6 hours; Bluetooth-compatible transmission distance of 10 meters; Built-in high-quality decoding chip, high-definition stereo sound quality (support sound quality comparison of similar products); Package Includes: 1x Wireless Adapter Specifications: Product Color: White/Black Net Weight: 99g Size: approx 75x25x10mm/2.95x0.98x0.39in Metal: ABS Bluetooth-compatible Transmission Distance:10 Meters 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.