Jawbone JAMBOX Wireless Bluetooth Speaker The Jawbone JAMBOX gives you major value with its huge sound and portability all in the same box. The proprietary acoustic drivers and passive bass radiator provide clear sound no matter what volume it is set at. Weighing only 12 ounces allows you to take your JAMBOX on the go whenever you feel like it. The speaker is compatible with most Bluetooth-enabled devices or any device that uses a 3.5mm cable. A built-in microphone allows you to answer calls, send emails using voice recognition, and much more. The speaker is powered by a rechargeable Lithium-ion battery that will last up to 10 hours of continuous play.