Feature: 1. Compact And Portable: Mini Bluetooth speaker, lightweight and simple, designed with a hand strap, convenient to carry, listen to music at any time. 2. Clear Sound: Mini wireless speaker built in high power amplifier, providing clear and large volume playback, strong sound strength. 3. Multi Function: Small subwoofer speaker with Memory Card, USB, FM function, to meet your needs of different scenes of use. 4. Stable And Sensitive: Bluetooth speaker uses 4.2 chip to provide a fast and stable connection, low power consumption, suitable for indoor or outdoor use. 5. Premium Materials: This portable speaker is made of premium ABS plastic, cloth materials, provide delicate feel and more fashionable appearance. Specification: Item Type: Mini BT Speaker Material: ABS Plastic, Cloth Main Function: BT, Memory Card, USB, FM BT Specification: BT 4.2 Power Amplifier Specification: 3W Battery Specification: 300mAh Playback Time: 2 Hours Sound Channel Mode: Mono Playback Format: MP3, WMA, WAV Amplifier Specifications: 3W x 1 BT Distance: <10m/32.8ft Expansion Memory: 16G Frequency Response: 80Hz-20KHz SNR: ≧75dB Charging Parameters: 5V 0.3A. Package List: 1 x Mini BT Speaker1 x Data Cable