Latte's high DSP technology produces crystal clear sound via noise reduction and echo cancellation. The Latte Mocha is super lightweight that not only provides maximum comfort even for long wearing periods, but also facilitates easy storage when the device is not in use. It allows you to talk freely even when your phone is in your pocket or across the room. Bluetooth v2.0 DSP Technology:Noise Reduction & Echo Cancellation Long operation time:up to 7 hours talk time and 170 hours standby time Crystal clear sound- RF Sensitivity: Over -83dbm Ergonomic design Voice dialing capable 33ft distance range Colors:Chocolate, Silver Maple, Raspberry, Vanilla, Blueberry