MINI SIZE FOR COMFORT: OpenRun Mini Bluetooth headphones don't go in or over your ears, ensuring your ears are always dry and cool even when running on hot humid days. Feather-light and a 0.83 inch (21 mm) smaller headband than the standard size, make the OpenRun Mini fit those with smaller heads snugly without weighing down the ears. OPEN EAR SAFETY: Whether you are running, cycling, sprinting or hiking, OpenRun wireless sports headphones provide the safest way to listen to music or podcasts without blocking out your surroundings. IP67 WATERPROOF: As a pioneer of bone conduction technology, we work on safe sports and are the only sports headphones brand recommended by England Athletics. IP67 waterproof wireless headphones, fully consider the outdoor environment during exercise, perfect for intense workouts. (Not suitable for swimming) 8-H CALLS & BLUETOOTH V5.1: Quick charge and long endurance provide music even during full Marathons. Dual noise-cancelling mics with Bluetooth V5.1 delivers an outstanding listening experience. OUTSTANDING SOUND EXPERIENCE: With advanced technology, OpenRun Bluetooth headphones bring you exceptional sound quality. SPECIFICATIONS: Brand: SHOKZ Model name: OpenRun Mini Form factor: Open-Ear Material: Rubber Connectivity technology: Wireless Wireless communication technology: Bluetooth Band size: 0.83'' shorter than OpenRun Bone conduction technology: 8th of bone conduction tech Continuous Play: 8 hours Charge time: 1.5 hours Standby time: Up to 10 days Quick charge: 10-min charge for 1.5 h usage Bluetooth versions: Bluetooth V5.1 Sweat resistance: IP67 Waterproof (No swimming) Charging: Magnetic Charging Microphone: Dual Noise-Cancelling Mic Age range (): Adult AVAILABLE COLOURS: Black WHAT'S INCLUDED: OpenRun Mini Headphones Carrying Bag Magnetic Charging Cable