Description: Equipped with battery charging and discharging protection board, so that every use of the battery has protection, greatly improving the service life of the battery. All control is at your fingertips with multi-function button, which are convenient and quick. Slanting into the ear design and the sound insulation makes the earphone more comfortable to use. Besides, the earphone and the ear canal fit well, it can be worn firmly and comfortably even if running and fitness and other strenuous exercises. The earpiece can be rotated by 180 degrees, and the left and right ears can be freely switched, the angle can be adjusted without restriction. Made of soft silicone material, and the earphone adopts ergonomic design fitting to the ears to brings you comfort, no pain for a day. Length of the bluetooth-compatible earphone is 8cm, width is 4.5cm, height is 2cm. This earphone is suitable for jogging, working, business, etc. Item Name: Wireless Earphone Material:Plastic,Silicone,Electronic Component Battery Capacity: 140mAh (Battery Included) Transmission Distance: About 10m Bluetooth Version: bluetooth-compatible 5.0 Model: R10 Size:8.5cmx4.5cmx2cm/3.35inx1.77inx0.79in 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 USB Charging Cable 1 X Earphone