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