LOUND HD SLOUD & POWERFUL BATTERY-Using A2DP technology and built-in 5W speakers, Bluetooth waterproof speakers can transmit incredible Hi-Fi sound, with deep bass and crisp treble. Support up to 6 hours of playback time.100% Waterproof-The portable Bluetooth speaker is completely waterproof against splashes and water. The water vapor in the bathroom will never interfere with the sound quality of the speakers. Be a bathroom rocker and do whatever you want.Easy to carry and strong suction power-equipped with detachable suction and aluminum alloy metal hooks, which can be easily attached to bathroom tiles and mirrors. With suction cups, you can also use metal hooks to hang portable speakers on your backpack.Compatible with all Bluetooth devices-the waterproof shower speaker supports connection to all Bluetooth devices, phones, computers and even the Echo series.BLUETOOTH V4.2 and hands-free calling: BT4.2 ensures instant pairing with waterproof speakers and maintains a strong connection up to 33 feet. The built-in microphone can provide clear hands-free calls in bathing, cooking, work, exercise and other occasions.