Jabra Speak 710 Uc Usb/bt Link 370. 7710-409, Noise Ratio (SNR) +70 dB, Connectivity USB 2.0 & Bluetooth® – USB cord ~ 100cm, Bluetooth®4.2 Low Energy (BTLE), Wireless Up to 100 ft / 30 m, Headset profile v1.2 , hands free profile v1.6, A2DP v1.2, AVRCP v1.5, Talk time Up to 15 hours, Charging power & time USB 5V / 500 mA – Charging time 3h. The Jabra Speak 710 is designed to handle it all. The built-in omni-directional microphone ensures your voice is picked up clearly while the built-in speaker offers enhanced audio playback.