The Metro Waterproof Bluetooth Speaker is a versatile piece of technology that gives you the listening freedom and music you want....when you want it, even in your shower. Keep your actual device away from water and moisture, safe and secure let Bluetooth and The Metro Waterproof Bluetooth Speaker do the work! Listen to quality audio streaming from your Bluetooth enabled device to this wireless speaker. In addition to listening to music and streaming audio, phone calls can also be answered from your Metro Waterproof Bluetooth Speaker. Hear your phone ring when a call comes in, and when the call is completed your music will resume playing where it left off. Note: The Metro Speaker is designed for use in wet locations and can withstand water pressure but DO NOT IMMERSE IN WATER! Before using charge the internal battery for 4 hours using the included AC adapter.