A True Wireless Stereo earphone, with in-ear design and ergonomic shape that fit comfortably in the ears. High quality sound brings perfect listening experience; Equipped with intelligent force sensor, convenient to control; Intelligent and reliable transmission with Bluetooth V5.1, transmission distance of around 10-12m. Quick and simple pairing, support primary/secondary switching between left and right earbud, easy use for single or both earbuds; Choose from three sizes of soft and flexible silicone tips to find the best fit and comfort. Play time: 3.5 hours. Talking time: 3 hours

metal + plastic