[. . . ] [. . . ] The perfect wireless listening experience · High-frequency RF ensures clear and sharp reception Always ready to go · Battery included so you can use your product straight away Wireless Headphone Specifications Sound · · · · · Acoustic system: Closed Frequency response: 18 - 20 000 Hz Magnet type: Ferrite Sensitivity: 108 dB Speaker diameter: 32 mm · · · · · · · · · · · · · · · · · · · · · · SHC1300/05 Product highlights Height: 241 mm Length: 426 mm Quantity: 6 Tare weight: 0. 332 kg Width: 305 mm 12NC: 9082 100 07807 EAN/UPC/GTIN: 87 10895 95758 8 Gross weight: 8. 195 kg Height: 511 mm Length: 441 mm Quantity: 12 Tare weight: 0. 680 kg Width: 321 mm 12NC: 908210007807 EAN/UPC/GTIN: 87 10895 95756 4 Gross weight: 0. 571 kg Quantity: 1 Height: 200 mm Length: 185 mm Tare weight: 0. 134 kg Width: 85 mm Lightweight design The durable, lightweight quality materials enhance comfort for extended wearing. High-frequency modulation Using very high frequency modulation(RF) for the transmission link ensures sharp clear reception. Just drop the batteries in and go! Tuner/Reception/Transmission Outer Carton 2 · Channel separation: > 30 dB · Effective range: 7 m · Carrier frequency range: 2. 3 MHz (L) - 2. 8 MHz (R) · Modulation: FM Convenience Power · Operating time: +/- 30 hours (Alkaline) · Power supply headphone: 2 x 1. 5 V R03/AAA · Power supply transmitter: AC/DC adapter 12V/ 200mA Packaging Data Inner Carton · 12NC: 9082 100 07807 · EAN/UPC/GTIN: 87 10895 95757 1 · Gross weight: 3. 758 kg Issue date 2007-11-23 Version: 2. 0 © 2007 Koninklijke Philips Electronics N. V. [. . . ] [. . . ]