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 | Charging/Audio I/O Cord Included | Pairs From Up To 30 Feet Away | 300 mAh Lithium Polymer Battery Included | Up To 1 1/2 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 3/8″ W x 2 3/8″ H x 2″ D, Imprint Area: Silk-Screen or Digibrite: Side: 1 5/8″ W x 1 5/8″ H … Digibrite: Optional Grill: 2″ W x 2″ H.Standard Imprint is on Side. Optional Imprint is on Grill. Imprint on Standard Location Unless Otherwise Specified on Order..