Sony - Refurbished Excellent - Wireless RF Stereo Home Theater Headphones - Black

Listen to your favorite media wirelessly from up to 150' away with the Sony MDR-RF912RK Wireless RF Headphone System. This system includes a pair of wireless circumaural headphones and an RF transmitter. The transmitter connects to compatible A/V components using the device's headphone jack (or using the L/R jacks and a separately available plug adapter). Once connected, the transmitter broadcasts the audio signal to the headphones, allowing you to enjoy a wireless audio experience. Volume controls are located on the headphones, so you can adjust the sound to your liking. The transmitter is powered using the included AC adapter. The headphones can be powered using the included rechargeable battery or two AAA batteries (sold separately). The included rechargeable battery yields 13 hours of life from 7 hours of charging. Product Specifications: Headphone Type: Circumaural. Modulation: FM stereo. Channels: Ch1, Ch2. Carrier Frequency: 915.5, 916.5 MHz. Frequency Response: 20 Hz to 20 kHz. Transmission Technology: RF. Transmission Range: Up to 150' (45.72 m). Inputs: 1 x stereo 1/8" (3.5 mm). Battery Type: Nickel-metal hydride battery BP-HP550-11 or AAA dry-cell. Battery Charging Time: 7 hours yields 13 hours of playback. 90 minutes yields 1 hour of playback. Power Consumption: Headphones: 2 W. Transmitter: 3 W. Operating Temperature: 32 to 104 degree F (0 to 40 degrees C). Dimensions: Transmitter: 4.25 x 5.04 x 4.5" (108 x 128 x 108 mm). Weight Headphones: 9.52 oz (270 g) with rechargeable battery. Transmitter: 4.83 oz (137 g).