Features a suction cup for easy attachment to wall or any flat surface,Great for showers, baths, swimming pools, boats, marine Built-in charging Battery and Built-in high sensitivity Microphone, listening music any where Bluetooth wireless transmission,Built-in microphone , so you can enjoy hands-free calling Use original ISSC imported top chip and Lossless audio codec technology Compatible with any Bluetooth media player, phone, iPod, iPad, Android Devices, Google Music, Pandora and all other media APPS.