Features: Super long standby 3.5mm Audio Input Stereo Sound USB Play High Fidelity BT

Tech Specifications: Charge Time 2-3 Hours Playtime 5-6 Hours BT

Version: 5.1 Battery: 3.7V 400mAh

Lithium Power Supply: DC 5V 800-1200 mAh

Range: 10 meters Transmitting Frequency: 50Hz - 18kHz 

Includes: Retro Wireless Speaker USB Charging Cable 3.5mm Audio Cable User Manual