Description: Bone Conduction Headphones: Open ear bluetooth headphones adopt bone conduction technology, make you hear to the sound surroundings while enjoying the bluetooth headset. Durable and Comfortable: The frame of the running headphones made of titanium alloy, lightweight and strong toughness, the frame be bent and stretched at will without deformation. And comes with a head circumference adjustment belt, you can adjust the size according to your need. Bluetooth 5.0 & IPX8 Waterproof: The bluetooth 5.0 headphones, excellent sound quality, stable transmission up to 10m. The IPX8 bone conduction headphones with mic are suitable for sports enthusiasts for running, hiking, cycling, and swimming etc.. MP3 Player and Built in 32G Large Memory: This bluetooth headset can also be used as MP3 player, built in 32GB memory, it can store about 9000 songs. Magnetic Charging and Long Battery Life: Magnetic Charging, built in 250mAh battery, listening time is about 13 hours. Specification: Headphone Function: IPX8 waterproof, built in 32G memory Bluetooth: V5.0 Battery: 250mAH Bluetooth Protocols: HSP, HFP, A2DP, AVRCP, SPP MP3 Listening Time: about 13 hours Bluetooth Headset Listening Time: 13 hours Bluetooth distance: 10m Supported Audio Formats: MP3\WMA\WAVAPE\FLAC Size Chart: Package Size: approx. 16x13x5cm/6.30x1.97.12x5inch Package Includes: 1 Piece Bone Conduction Headphones 1 Piece Magnetic Charging Cable 1 Piece Adapter 1 Piece Silicone Belt 1 Piece Color Box Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!