Sony MDRRF970RK Wireless Stereo Headphones

Features: 900MHz RF Wireless Headphones Clear Sound Quality 40mm driver units Neodymium magnets Induction auto-charging so no direct pin contact is necessary Mute when no signal or weak signal is present 10-hour battery life 150' transmission range

Specifications

• self-adjusting double headband with built-in auto power on/off sensor
• over-the-ear, open earcup design
• 900 MHz RF (radio frequency) wireless transmission
• 40mm drivers with Neodymium magnets
• automatic tuning
• rotary volume control
• switchable noise filter for use when connecting to a TV
• selectable 3-channel transmission
• listening range: up to 150 feet
• up to 14 hours operation using the supplied NiMH rechargeable battery pack; up to 22 hours with two "AAA" batteries (not included)
• transmitter/storage stand charges the headset's included batteries
• AC adapter
• headset weight: 10.59 oz.
• transmitter dimensions: 8-7/16"W x 4-1/16"H x 4-15/16"D
• MFR # MDRRF970RK