about this item: The new bathroom suction cup waterproof Bluetooth speaker features a built-in microphone for hands-free calling, a display of display, an electronic clock, Bluetooth playback, radio and other functions, and can display the radio frequency. High-definition sound quality, built-in 1000mA polymer lithium battery, up to 12 hours playtime, IPX4 waterproof system. Enjoy life the way you want. Powerful Suction Cup│IPX4 Waterproof Portable design. It can be adsorbed on smooth surfaces such as glass, tiles, mirrors and mobile phones. Office / car / shower window / balcony / kitchen / dressing table / bathroom bath. Go anytime, anywhere. Product Description: Product Name: Portable DC Adsorption Speaker. Bluetooth Version: BT V2.1. Power Supply: Built-in polymer lithium battery. Battery Capacity battery: 1000mAh. Transmission range: 10 meters. Output power: 3 w. Battery life: 12 hours. Charging time: 3 hours.< br/> Working frequency: 100Hz-20kHz. Sensitivity: -85dbm. Segment