I am selling this item because I received it as a prize at an event in July, but I already have the same one. I think it's a much better deal than buying it for the regular price of 84,000 yen. 【Materials】 Aluminum, Leather, Fabric, Rubber, Polymer 【Dimensions】 Fully Stored: 195 x 200 x 52 mm (when the ear cushion side is placed down) 164 x 188 x 89 mm (when the ear cushions are vertical) Fully Expanded: 175 x 220 x 52 mm (when the ear cushion side is placed down) 164 x 208 x 89 mm (when the ear cushions are vertical) 【Weight】 285g (body only) 【Microphone】 4 digital MEMS voice microphones (2 are shared with ANC) 4 digital MEMS ANC microphones (2 on each ear cup) 【Battery】 Replaceable lithium-ion battery Capacity 1110mAh Up to 35 hours with Bluetooth & ANC Up to 40 hours with Bluetooth only 【Bluetooth 5.1】 Stores pairing history for 8 devices 【Codecs】 AptX adaptive, AAC, SBC 【Charging Time】 Approximately 2 hours 【Charging】 SV USB power supply via USB-C connector 【Speaker】 40mm diameter electrodynamic driver 【Frequency Response】 20 - 20,000Hz 【Impedance】 24Ω +/-15% 【Sound Pressure Level】 95db, 1mW@1kJz 【Connections】 Bluetooth, USB port, 3.5mm mini-jack Bang & Olufsen Beoplay HX Timber Noise Cancelling Wireless Headphones