Fiche TechniqueTG TG157 Portable Bluetooth Speaker wireless: Black Specification: Bluetooth version:5.0 Date transmission distance:10m Play time: 3H (the volume will affect the playing time) Speaker: 5W * 2 Peak Value:10W Sound track: 2.0 Frequency range: 2.4GHZ Input sensitivity: 400mV Wireless transmission distance: 10 meters Signal-to-noise ratio: 80dB Playback formats: WAV,…