iSound Crescent Rechargeable Bluetooth Speaker and Speakerphone Compatible with all Bluetooth and 3.5mm Phones and Devices - Red Connect wirelessly via Bluetooth or wired via 3.5mm audio cable Transmission range up to 33 feet Play/pause, volume and phone controls Up to 4 hours of continuous play time (depending on volume) Ability to turn any speaker into a Bluetooth speaker via AUX out port