Sony Wireless Headphones. Black - MDRRF811RK.EU8

Sony MDR-RF811RK. Product type Headphones. Wearing style Head-band. Recommended usage Music. Connectivity technology Wireless. Wireless range 100 m. Ear coupling Circumaural. Headphone frequency 20 - 20000 Hz. Acoustic system Closed. Battery type BP-HP550-11. Battery technology Nickel-Metal Hydride (NiMH). Battery life (max) 13 h. Weight 270 g Ports & interfaces

Connectivity technology Wireless Wireless range 100 m

Performance

Product type Headphones Wearing style Head-band Recommended usage Music Product colour Black Volume control Rotary

Microphone

Microphone type Not available

Battery

Battery type BP-HP550-11 Battery technology Nickel-Metal Hydride (NiMH) Battery life (max) 13 h Rechargeable battery Y Battery charge indicator Y Battery recharge time 16 h Charging source AC

Headphones

Ear coupling Circumaural Acoustic system Closed Headphone frequency 20 - 20000 Hz Magnet type Neodymium Driver unit 4 cm

Weight & dimensions

Weight 270 g

Packaging content

AC adapter included Y Wireless receiver interface 3.5 mm Quantity 1

Operational conditions

Operating temperature (T-T) 0 - 40 °C Operating relative humidity (H-H) 40 - 60 %

Other features

Receiver dimensions (W x D x H) 108 x 108 x 128 mm Receiver weight 137 g Modulation FM