Bluetooth 5.2 Advanced Wireless Audio Noise Cancelling Headphone / Fast Charging Case/ Easy Connection Single Earbuds Use Either earbud can be used alone. Humanized Design The ergonomic design ensures that your in-ear headphones fit comfortably in your ears. Long-lasting Battery 4 hours of headphones use, plus 20 hours of playback time with the charging case. Premium Sound Quality You can enjoy your music even in noisy environments. Touch Features You can tap the earbud to skip songs, adjust volume, answer/reject calls and activate siri. How to Pair? 1.Take out 2 earbuds from charging case or any single earbud. 2. Turn on Bluetooth and select "i12" to connect your device. After it, when take out 2 earbuds from charging case or any single earbud from charging case,they will connect automatically. Technical Specifications: Bluetooth Version: V5.2 EDR Transmission Distance: 50ft max Playtime: 24 Hrs Waterproof Rating: IPX5 Charging Case Capacity: 650mAh Charging Port: USB-C What’s in the Box : 2 x i12 Earbuds 1 x Charging Case 1 x USB-Charging Cable 1 x User Guide If you failed to pair your device with the earbuds, please restore them to factory settings as instructed below: