【HD Stereo Audio & One Button Control】BT-X Easy Wireless on ear Bluetooth Headphones feature 27mm speakers for bass, By adopting a Bluetooth chip with ANC+ENC adaptive noise reduction function, the call noise suppression is clearer and the voice reproduction is higher. Music and phone calls can be easily controlled via the multifunction buttons on each headset. 【Listen to music for up to 18 hours】The open-ear wireless headphones can listen to music for up to 18 hours with a single full charge. When the charging case is fully charged, the sport Bluetooth headsets total listening time of music can be up to 52 hours. 【Fast contact and Bluetooth 5.4】 The new BT-X Easy wireless open cordless earphones use Bluetooth 5.4 technology, which is fast in pairing, more stable in connection and more reliable in use. keben of use for sports and running, the earlobe type Bluetooth headphones are also widely used by students when practicing listening with 28MM dynamic speakers. 【Comes with charging case】With a large capacity charging case, you can charge your wireless on-ear headphones in time when they are empty. At the closed opening of the charging case there is a power indicator light with a total of four stages, each representing 25% of the battery capacity, so that the remaining battery capacity of the charging case can be easily detected. The charging case supports USB-C charging. 【Comfortable】 The small open-ear wireless Bluetooth earphones with earhook adopt a sponge earcup design that is comfortable to wear and does not compress the ears. The size of the headphones themselves has been improved, and now the diameter of the headphones is only 36MM, which is small and light, and there is no sense of restraint when you wear them. On Ear Headphones Bluetooth 5.4, Noise Cancelling Open Ear Headphones Wireless, Water-Drop Shaped Clip On Sport Headset Bluetooth with 4 Microphone, Comfort Fit Earphones with Long Battery Life