Jam Audio Wireless Speaker

For booming sound in a compact, on-the-go design, look to the Jam Audio Classic 2.0. It also offers speakerphone functionality when you connect to your Bluetooth-compatible phone. The built-in rechargeable battery delivers up to 5 hours of playback per charge. Dimensions: 2.8″ x 2.8″ x 2.75″ (W x D x H).