Simply pair this wireless speaker with your device to enjoy dynamic stereo sound from up to 30 feet away with up to 2 1/2 hours of play time! V4.0+EDR, it supports TF card, BT, FM radio & handfree phone calls. Idea for music stores, educational organizations, travel agencies, spots clubs or associations and company thank you gifts. Perfect for office, home or outdoor activities. It comes with a built-in rechargeable Li-ion battery, a charging cable and an audio I/O cord in a gift box. Large imprint area for highlighting your information and perfect for reminding them of your brand on the daily.