Description:With cool lighting effect, the earphone helps improve night running safety. And it features IPX7 waterproof and sweat-proof, which helps prevent rain and sweat.The earphone adopts ergonomic ear hook design, which does not fall during exercise and enables you to enjoy more comfortable and painless wearing experience.Made of high-quality ABS material, the product is lightweight and comfortable.The length of the product is 140mm, the width is 108mm and the height is 42mm.It is suitable for running, business, driving, outdoor and travel, etc. The earphone spreads to the eardrum through the airflow through the sound hole, which will not damage the eardrum, making it safer, more comfortable and healthy. And it can be used by inserting a card, there is no need to connect a mobile phone to listen to songs.Item Name: Bluetooth-compatible EarphoneMaterial: ABSStyle: A: Bluetooth-compatible Version, B: Memory Version (Optional)Bluetooth-compatible Version: Bluetooth-compatible V5.1Bluetooth-compatible Distance: 10mFrequency Response Range: 20HZ-20000HZBattery Capacity: 220mAh (Included)Waterproof Grade: IPX7Play Time: 15 HoursStandby Time: 200 HoursCharging Time: 1-2 HoursCharging Interface: Micro USBConnection Method: Bluetooth-compatible/Plug-in CardApplicable System: for Apple/for AndroidFeatures: Surround Sound, Noise Reduction, Cool Lighting EffectSize Details: 14cm x 10.8cm x 4.2cm/5.51" x 4.25" x 1.65" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bluetooth-compatible Earphone1 x Charging Cable1 x User Manual