ADH500 (receiver base) + ADH502 (headphones); Fashionable, ergonomic headband design (Closed-back headphones) and memory foam cushion; 40mm speaker diameter; 2.4G RF 35m (100 feet) wireless transmission range; Nimh AAA rechargeable battery; RCA/6.3 mm/3.5 mm wired interface; TV,DVD,MP3,PC etc....

ADH300 (receiver base) + ADH302 (headphones); 2.4GHz hopping anti-interference wireless transmission (30m transmission range); High power NiMh batteries; 31-channel auto frequency searching system; Smart volume memory; Low power alert; Auto pin charging mechanism; RCA/6.3 mm/3.5 mm wired...

2.4GHz hopping anti-interference wireless transmission (30m transmission range); Charging dock + transmitter; auto connect; A user friendly audio experience; 12 hours working time on a single charge; Power saving "Auto OFF" function; Volume memory preset; Wired audio mode; Low power indicator...

Adjustable soft padded headband; 30m (100 ft) RF 2.4GHz wireless connection; 20 hours playback on a full charge; Crystal clear sound; Wireless + 3.5mm wired audio, 3.5mm to 6.3mm connector, RCA adapter cable; Headphones - 195g weight

Adjustable soft padded headband; 30m (100 ft) RF 2.4GHz wireless connection, 30ms low latency; Crystal clear sound; AAA NiMH rechargeable batteries; Multiple-connection mode; IPX-1 water-resistance (headphones)

2.4GHz digital hopping system technology; Immersive 7.1 Virtual Surround Sound; 25 hours duration; Noise cancelling microphone