The BlueParrott M500-XT wireless headset is designed for anyone who's constantly on the move. Featuring a mono, reversible design, it can be worn on either the right or left ear. Advanced noise-cancelling microphones with 93% noise cancellation ensure your voice is heard loud and clear by the person on the other end. | BlueParrott M500-XT Wireless Bluetooth Mono Headset with 93% Noise-Cancelling Microphone