Highlights: Measurements: 11.8 x 7.8 x 3.8 CM Input voltage: DC 3.7V Charge source: USB Housing material: Plastic, Waterproof Colors: Black, Red, Grey, Blue, Green FM Radio: YES SD Input: YES Rechargeable Battery: YES Bluetooth version: 4.2 Battery Capacity: 400Mah Playing time: 3- 4 hours Charging time: 2-3hours Amplifier specifications: 3W Product Description: 1. Stereo sound quality and exquisite workmanship. Fabric technology on the front; 2. Support MP3, WMA music files; 3. Support TF card, USB playback, Bluetooth handsfree call. 4. Maximum Support 32G TF Card playback. 5. Support FM mode,87.5~108MHz.   What’s in the box: 1 x Bluetooth Portable Speaker Weight: 0.3 SKU: 201014162318