(Size Information) Use a soft leather ruler or string, Hold the left end behind the left ear and the right end behind the right ear,then measure the size, if the distance between the two ears is 10inch or less can be worn
(Comfort & Open-Ear Safety) Lightweight, secure fit bone conduction headhpones bluetooth around 29G allow you to experience unparalleled comfort with an Open-ear design that allows all-day listening without ear fatigue. The wrap-around titanium frame keeps your wireless headphones stable and in place during intense training.
(Outstanding sound quality) generation of premium bone conduction headphones bluetooth with integrated ENC noise-canceling chip eliminates ambient noise (clear call sound) and allows you to enjoy balanced audio, powerful volume and excellent sound anytime, anywhere.
(IP68 Swimming Headphones) Waterproof swimming headphones can be completely sweat and water resistant. Even if you are sweating during sports, or running in the rain, swimming, snorkeling, fishing and boating, MP3 headphones can fit these scenarios and let you enjoy your sports (please use MP3 mode in water).
(Bluetooth/MP3 Dual Mode) Wireless bone conduction headphones built-in 16GB high-capacity memory card, it can be used as an MP3 player. Let you enjoy your favorite music directly from the headphones when you are exercising outdoors, no need to carry your mobile phone. The Bluetooth 5.2 chip gives you a stronger, faster and more stable connection.
(Ultra-long Battery Life) Enjoy over 6 continuous hours of music, calls, podcasts and audiobooks with our bluetooth headset with microphone. The bluetooth running headphones also feature a 5-minute magnetic fast charging for up to about 1 hours of battery life.
Product From USA