Samsung HM1900 Bluetooth Headset - Retail Packaging - Black Simple Pairing technology automatically pairing with the closest Bluetooth-enabled device Built-in voice prompts can tell you when you need to recharge your headset, when youve successfully connected to a device, usage instructions and more The HM1900 features Bluetooth Version 3.0 and is compatible with all Bluetooth-enabled devices Delivers top-notch sound via its built-in noise reduction and echo cancellation technology, ensuring crystal clear call clarity, even in noisy environments