Features: Fully portable speaker Working Distance up to 10m Bluetooth, FM Radio, Micro SD(TF), Aux input Powerful, high quality sound Handy shoulder strap included Specifications: Speaker Output: 2 x 2W, 4ohm Subwoofer Output: 7W, 4ohm Speaker Size: 2 inch Subwoofer Size: 4 inch Bluetooth Version: JL, V2.1 Bluetooth connection range: 10meters Rechargeable lithium battery Battery Capacity: 1800mAh, 3.7v Frequency Response: 100-20Khz FM Frequency Range: 87.5-108mhz Signal to Noise Ratio: 80dB Power Supply: 5V, 1A Product Size: 136x314mm

Battery
Battery Capacity: 1800 mAh
Charging Time: 4 – 6 Hours
Operating Time: Up to 4 hours