Philips FM Wireless Hi-Fi Headphones

No more hassles with the cables, you can feel free to move around at home for music enjoyment. With the rechargeable and lightweight design, you don’t need to bother for long wearing time. FM wireless transmission for freedom of movement 2 channels selections to avoid interferences 32mm speaker driver delivers high performance sound Self-adjusting inner headband fits perfectly the shape of any head and provide optimal comfort Ergonomic ear cushions design for comfortable, long listening sessions" Specifications: Sound: Acoustic system: Closed Frequency range: 20 – 20 000 Hz Magnet type: Neodymium Speaker diameter: 32 mm Impedance: 24 ohm Connectivity: Channel separation: > 30 dB Pilot tone frequency: 19 kHz Effective range: 100 m Carrier frequency range: 863.0 – 865.0 MHz Modulation: FM Number of channels: 2 Power: Power supply headphone: 2×1.5 V NiMH R03/AAA Power supply transmitter: AC/DC adapter 8V/200mA Operating time: 10 hours