Wireless Headphones Freely (Stereo) Bluetooth Compatible: ver5.3 USB Rechargeable : Continuous use time: Approximately 5 hours, Charging time: 1 hour Size: Approximately W13 x D8 x H17.5-19.5cm Weight: Approximately 135g Color: Black Please refer to the images for other details. Please consider this item with the understanding that it is a prize item. Please contact the seller for any product defects. Instant purchase is OK. Free shipping, anonymous shipping is planned.