The Cylinder Bluetooth(R) Speaker is a lightweight speaker with an internal rechargeable battery that provides up to 1.5 hours of nonstop music. 3 Watt Speaker Output. Built in Microphone for conference calls. Includes Micro USB Charging Cable. The Bluetooth working range is 10 meters (33 feet). Charge time: one hour. Complies with Prop 65. 2" H x 2.25" W. Imprint Area is 1.00" H x 1.50" L on 3 color max centered on front. Please call for rush delivery availability or for multi-colour, multi-location imprints.