Bluetooth Headphones, Joly Joy Wireless Headset V4.1 Sports Earbuds with Microphone Sweatproof Earphones for Running Gym Exercise Latest standard Bluetooth V4.1 with A2DP support, high clarity sound with Noise Cancellation technology. Can be applied to audio from any Bluetooth devices like cell phone, PC, notebook, tablet... Can connect to 2 devices at the same time, up to 7 hours of talk time or 200 hours of standby with a single charge, LED battery status indicator Our bluetooth headphones pair with devices up to 10 meters away, and with mic functionality, so you don't have to stop working out to answer calls! The running headphones are even sweatproof, so you won't have to worry about wearing them when you're running So easy to use the volume, sound, song selection and telephone controls are all right on the wireless Bluetooth earbuds, making these the most convenient Bluetooth earbuds for running, sports, lifting weights & more! Package Contents: 1x Bluetooth Sport Headphones; 1x USB Charging Cable; 12x Ear Buds(6 pair); 1x User Manual