M&J Colorful LED Lights Bluetooth Speaker HIFI Stereo Wireless Portable with Mic Hands Free Support TF FM USB Flash Subwoffer Specification: Blue tooth version:4.2 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, MP3, WMA TF Maximum support: 32G Mode of operation: press key Input voltage: DC 5V 2A Certificate type: CE Dimension:178.7*72.9*72.6mm Packaging List: 1*bluetooth speaker 1*Aux audio cable 1*USB charge Cable Feature: Connection: Bluetooth,TF card.AUX,USB Portable (with handle) stronger power,quite loudly Fashion looking Suitable for indoor outdoor sports ,race,hiking,camping,party etc. Offer you a good music as well as nice mood.