Matrix Audio One Universal Bluetooth: * Xcavated Bass Amplifier (XBA) * Powerful 45-millimeter drivers * Roughly the size of a nectarine skull * 3.5 total watts * Simple Bluetooth pairing * 10m Bluetooth range * Pick up and answer calls * On-speaker track-change and volume controls * Universal 3.5mm headphone jack * Compatible with Apple and most other portable audio devices * Built-in rechargeable battery * Up to 14 hours playback * Carrying pouch included * Color: red