Sony MDR-RF970RK

Don't let your headphones cramp your style... go wireless, and roam free. Sony's MDR-RF970RK wireless digital headphone system has a transmission range of 150 feet, allowing you to move about your house or yard without missing a beat. The 900MHz radio frequency delivers high quality sound, and the 40mm driver unit provides deeper bass, lower distortion and a wider dynamic range. These lightweight headphones are easily recharged by placing them on the transmitter and delivers up to 14 hours of your favorite tunes and stations on one full charge. Once you go wireless, you will never return to wires again.

• 900MHz RF Wireless headphones
• 150 ft. transmission range
• Induction charging: no direct pin contact needed for ease of use
• Noise Reduction technology to reduce interference
• 40mm driver unit provides deeper bass, lower distortion and a wider dynamic range
• Neodymium magnets for higher fidelity sound
• 3 Transmission Channels Available : helps ensure optimum signal reception
• Automatic Power On/Off for both headphones and transmitter conserves battery life: transmitter turns on when it senses an input signal, headphones turn on when you place them on your head
• Double Headband with self-adjusting mechanism conforms to the curve of your head
• Charging time:  Approx. 16 hours
• Battery time:  Up to 14 hours listening
• Headphone Type:  Closed, dynamic
• Frequency Response: Transmitter - 30 - 12,000Hz
• Sensitivity: 105 dB/mW