Features : Callpod Dragon Universal Bluetooth Headset. Compatible with all Bluetooth enabled devices including cell phones and PDAs made by different manufacturers. Bluetooth version 2.0. Dual-microphone background noise cancellation for crystal clear conversations. Two-button design for enhanced call control. Multi-device pairing for connecting with up to 2 Bluetooth devices at the same time and switching between them easily. Reversible ear hook fits either your left or right ear comfortably for all-day wearing. Sleek design. Specifications : Battery performance of up to 8 hours of talk time or up to 300 hours of standby time. Offers a wireless connection range of 100 meters (328 feet). Dimensions (H x W x D) : 2.25Â’Â’ x 2.16Â’Â’ x 1.25Â’Â’ Weight : 0.9 oz. Package Includes : Callpod Dragon Bluetooth Headset (Black) AC Travel Charger Quick Start Guide