Experience Bluetooth® technology at wired headset prices. A single, replaceable AAA battery eliminates the need for a charger. The H300 is small, lightweight, and comfortable to wear for long periods. Specifications: Uses a single AAA replaceable battery Left or right ear wearable Microphone mute button Bluetooth® 1.2 compliant Up to 30 hours of talk time or up to 20 days standby Easy to use - quicker connection - reduced interference Compatible with other Bluetooth® 1.1 enabled devices including cellular phones and PDA's from many different manufacturers Supports the Bluetooth® Headset Profile and Hands Free Profile