Jabra Engage 65 Convertible Headset - MonoJabra Engage 65 Convertible Headset Mono Wireless DECT 328. 1 ft (100 m) 40 Hz to 16 kHz Over the head, Over the ear Monaural Electret, Condenser, Uni directional Microphone VPN: 9555 553 125 SKU: AC905897 UPC: 706487017318 Go wireless and enjoy the music you love with the 65 Convertible Headset Hear every detail crisp and clear with a frequency response of 40 Hz 16 kHz Listen to your tape recordings or use them when listening to telephone calls on