Schultz AudioWorks Bluetooth Speaker Wireless Bluetooth connectability with a range up to 32 feet or use NFC Pairing or connect your device in auxiliary mode. Silk Dome Tweeter - 1-in X 2 Schultz AudioWorks Bluetooth Speaker has a top-quality rechargeable lithium-ion battery with up to 15 hours of playback time. USB slot for recharging your mobile device. 13.75-in long x 4-5-in high x 6.25-in wide Accept or decline incoming calls with the push of a button. Passive Radiator: 6.4-in x 2.4-in Midrange, 2-in X 2 - Paper Cone, Ferrite Magnet. Subwoofer, 3.5-in X 1 - Paper Cone, Ferrite Magnet