1PC charging line Internal inclusion： Transmission range: 10M Single or double ears: bilateral stereo Model: T13 Usage: earplug 4.The wireless headphones are very easy to pair with any devices and can play music for up to 5 hours. And with the portable charging case, your earbuds can be charged for extra 3 times. Completely enough for your daily use. 5. technology efficiently protects the earbuds from sweat or water, it is a good choice for strenuous workouts and all weather. 1.No matter use two earbuds together or just use one earbud at one time, there is no restriction to binaural mode and monaural mode automatically. And with the most advanced Bluetooth 5.0 technology, you can enjoy music with your friends freely. Super-fast connection, super easy pairing, and a stable connection. Channel: stereo Bluetooth protocol: 5.0 Functions: power display, call function, NFC function, voice control, music support, multipoint connection 2.The wireless earbuds Offers a Truly Natural, Authentic Sound and Powerful Bass Performance. 1PC pair of headphones 3.Adopt Ergonomic and lightweight design and it fits comfortably and snugly in your ear; 3 sizes of ear tips option provide individualized fit and comfort for all-day wearing no . They fit well stay firmly in your ear even for workout or running. 1PC charging Cmb-510-hf Wi over The Ear Headphones