Features: Connection: Bluetooth, TF Card, AUX, USB Portable  Stronger power, quite loudly Fashion looking Ultra Lightweight And Portable Powerful Sound Output with Compact Size Built-in MIC, So You Can Answers Phone Calls with This Speaker Multiple Connectivity: Bluetooth / TF / AUX etc. Smart Chipset Enables Volume +/-, Last/Next Song Function Provides Play/Pause Function Suitable In Many Situations: Party / Street / Bedroom etc. Specification: Bluetooth 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 Package Included:  1  Bluetooth speaker (Green) 1  Aux audio cable 1  USB charge Cable