Wireless Speaker Featuring High Definition Bluetooth® 2.1 Technology | Simply Pair With Your Device To Enjoy Dynamic Stereo Sound | Perfect For Your Home, Office Or Outdoor Activities | LED Indicator Light | Charging/Audio I/O Cord Included | Pairs From Up To 30 Feet Away | Output: 5 Volts/1.8 Amp | 400 mAh Lithium Polymer Battery Included | Up To 3 Hours Of Play Time | The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Hit Promotional Products®, Inc. is under license. Other trademarks and trade names are those of their respective owners.. Approximate Size: 2 7/8″ W x 2 7/8″ H x 1 1/2″ D, Imprint Area: 1 1/2″ W x 1 1/2″ H (Fabric Only)