New Hs 300 Wireless Bluetooth Headset Simplified Pairing Micro Usb Standard Connection by BlackBerry Voice prompts: Once you're connected, voice prompts alert you with battery status updates, mute status and more. So you always know what's going on. Bluetooth 2.1 for simplified pairing. Bluetooth HFP Bluetooth profile. Dedicated on/off switch. 4 hours of talk time with a full charge. Rapid charging: With just 15 minutes of charging, the headset gives you up to 2 hours of talk time. So whatever you're doing, you've got a headset that's good to go.