35 Hour Playtime With 40 Mins Chargeblueear neckband bluetooth headphones have built-in upgraded chip. Quick charging technology enables 10 hours of listening from just 10 minutes of charge. up to 35 hours hours music time, only need takes around 40 minutes for full charged. Latest Bluetooth 5.2The Bluetooth headset uses the latest Bluetooth 5.2 chip. Stable data transmission and wide wireless coverage. Compatible with all Bluetooth enabled devices. Powerful Audio PerformanceThe Bluetooth headphones have built-in HD Microphones. And noise-canceling technology reduced the outside noise. so it always allows you immerse yourself in pleasant music world. Bluetooth headphones can filter out the background noise largely and provide you clearer voice for hands-free calls. Convenient Slight MagnetBoth magnetic earbuds headphones can be attached to the neckband when not in use. You will not have the bother of losing the earbuds like other true wireless earbuds.Three pairs of different size earplugs are available for different ear shapes. And 27.5 oblique in-ear design prevent headphones from falling off. Ideal Design for ExerciseNeckband bluetooth headphones have a lightweight silicone neckband,ensure a snug fit on your shoulders and superior shape retention.waterproof casing protects bluetooth headphones against rain, water, and more.