Description: Using ergonomic ear hook design, this earphone provides you with a comfortable wearing experience. This bone conduction earphone has built-in highly clear microphone, which allows you to enjoy smooth voice call experience. It is constructed of ABS material. The length of this product is 17cm, the width is 13cm and the height is 1.8cm. It is suitable for business, driving, running, sports, outdoor, travel, etc. Item Name: Earphone Material: ABS Bluetooth-compatible Version: 5.1 Headphone Type: Wireless Headphone Noise Reduction: Yes Waterproof: IPX5 Microphone: Support Transmission Distance: 10 Meters Music Time: 8 Hours Standby Time: 120 Hours Charging Time: 1 Hour Battery Capacity: 180mAh (Included) Frequency Response Range: 20Hz-20000Hz Adaptation System: Suitable for iPhone and for Android Mobile Phones, and Digital Devices with Bluetooth-compatible Features: Comfortable, Noise Reduction, Built-in Microphone Size Details: 17cm x 13cm x 1.8cm/6.69" x 5.12" x 0.71"(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 Earphone 1 x Charging Cable 1 x User Manual