Crystal-clear Calls and HD Stereo Sound.These neckband Bluetooth headphones with surrounding noise cancelling technology allow you to enjoy crystal-clear calls when you are working from home, commuting or in the office.Thanks to its calls vibration notification feature, you will never miss any call.This wireless headset offers the premium expertly-tuned sound with high definition stereo bass with the aid of the advanced chip, 0.3inch large drivers, and Bass+ technology IPX waterproof : IPX waterproof shell and Nano-interior coating,earbuds can fend off the light rain and they are suitable for heavy workouts and all weather conditions.Perfect for workout, running, jogging, exercises, gym, fitness, traveling, climbing,cycling and etc. Bluetooth 5.2 & Stereo Sound: This Bluetooth headset adopts advanced Bluetooth 5.2 technology providing faster and stable signal connection.The CVC noise canceling technology and built-in mic for stereo high-definition sound and super bass sound, makes calls clear and stable.You will love the wonderful music and clear calls sound that these headphones bring. 24 Hours Almost Full Day Playtime with Fast Charging Technology.These Bluetooth 5.2 headphones with powerful rechargeable 220mAh battery provide you with 24 hours of non-stop playtime by dint of advanced low-power consumption chip.Listen to the consecutive music a full day.Charge 1h, use for 12 hours due to its fast wireless charging technology.One USB charging cable comes with the box