Wireless rechargeable bluetooth speakers with Micro USB , Mashroom shape

Wireless rechargeable bluetooth speakers with Micro USB , Mashroom shape Specifications: 1.It can suck on glass/mobile phones/blackboard/PC etc. 2.Bluetooth V3.0 3.Loudspeaker output : 3W RMS 4.Support hands-free phone call 5.Operation range: up to 15 meters 6.Frequency response: 100Hz to 20kHz 7.Signal-to-noise: ≥75dB 8.Distortion: ≤1.0% 9.Built-in Li-polymer battery(400mAh) / Charging time: 2.5 hours 10.Playback time: 8-10 hours 11.Material:Silica gel + Plastic It can suck