10.24 x 3.94 x 0.47 inches

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【Sleep Headphones & Wireless Earphones & Sports Headband 3 in 1】Perytong Bluetooth Sleep Headphones feature a headband design with wireless speakers inside, which help to tune out external noises and lull yourself to sleep.Wireless headband adopt latest Bluetooth 5.0 version with 33 feet of wireless range, and compatible with most iOS, Android or windows system wireless devices. like smartphone, table, ipad or laptop
【Best Sleeping Headphones for Side Sleeper】The devices control module is in the middle of speakers, won’t press the ears, which is very comfortable for side sleepers sleeping. The ultra-thin flat headphone speakers are comfortable enough to wear while lying down or sleeping on your side. They block out ambient noise without using earplugs that are painful & fall out.