FEATURES

• Has 5 Audio Modes (Bluetooth, Radio, USB, Auxiliary, TF Card)
• Has a carrying strap for outdoor usage
• Outdoor Mode to playing music at a higher frequency.

Specifiactions:

• Output power      : 16W (8W*2) (RMS)
• Driver Unit           : 2.75"4Ω8W*2
• Frequency           : 90Hz~20kHz
• S/N. ratio             : ≥85dB
• Impedance          : 4Ω
• Power Supply     : USB 5V & Battery 3.7V
• Battery                : 4500mAh last for 4 hours