Wireless headphone system with long battery life and 100m range
-40mm driver units for deep bass response.
-Hassle-free recharging by placing the headphones on the dock (headphone charged via electromagnetic induction).
-Automatic On/Off for headphones making your batteries last longer.
-Rechargeable Battery will keep the music going.
-Battery playback time up to 15 hrs with rechargeable batteries or 28 hrs with Sony Alkaline batteries.
-Rotary Volume Control on Headphones.
Sony Wireless Headphone. Ear coupling: Supraaural, Headphone frequency: 10 - 22000 Hz, Driver unit: 1.57" (4 cm). Connectivity technology: Wireless, Wireless range: 3937" (100 m). Battery life (max): 28 h, Battery recharge time: 16 h, Battery type: AAA. Color of product: Black. Weight: 10.6 oz (300 g), Width: 4.41" (112 mm), Depth: 12.2" (310 mm)