Wireless bluetooth headphones 1314 are completely wireless headphones with which you can connect to your devices via bluetooth connection. The headphones have a built-in microphone , so you can not only enjoy music or movies with these wireless headphones, but also use them as a hands-free device for phone calls. You can charge these wireless bluetooth headphones right from the carrying case! Features : AutoPair - headphones connect to each other automatically. Display - The charging case has a built-in display that informs you about the case's battery status. Charge Box - after placing the headphones in the case, the headphones will start charging immediately. Multi-Function Click - you can stop the music player, answer or reject a call with one click. Operation indicator - the LED light on each headset will notify you of the device's status . Specifications : Headphone battery capacity: 50 mAh Case battery capacity: 200 mAh Operating time: up to 4 hours. Operating limits: up to 15 years Bluetooth version: 5.0 Charging socket: lightning In the set : 2 x Headphones 1 x Charging and carrying case 1 x USB cable