Mushroom Mini Bluetooth Speaker with Suction Cup (Splash Proof, 280mAh, 3W, Blue) Type: Bluetooth Portable Speaker Standby Time: About 12 Hours Charge Time: 2.5 Hours Operating Range: 33 Feet Bluetooth Version: 3.0 Battery: Build in 280mAh li-batter Dimensions: 3.15 x 3.15 x 3.94 Weight: 0.28 lbs.