TL7600 AT&T Wireless Headset - Mono - Silver, Black - Wireless - RF - 500 ft - Over-the-ear, Over-the-head, Behind-the-neck - Monaural - Open AT&T Wireless Headset - Mono - Silver, Black - Wireless - RF - 500 ft - Over-the-ear, Over-the-head, Behind-the-neck - Monaural - Open AT&amp;T TL7600