Metal Magnetic Wireless Bluetooth Earphone, Sports Casual Convenient Headset Stereo BassFriendly Tips: 1.Please kindly allow 2-3% difference according to manual measurement.2.Please check the measurement chart carefully before you buy the item. (1inch=2.54cm) 3.Please note that slight color difference should be acceptable due to the light and screen.Thanks.Specification: Material:Metal and silicone,lightweight and sweatproof,ensure the bluetooth wireless headphones stay comfortably firm in your ear to guarantee. Bluetooth Version:Bluetooth V4.2 Color:Black,blue,gold,silver Battery Capacity:75 mAh Charging Time:1.5 hours Talk Time:3-4 hours Music Time:5 hours Standby Time:60 hours Bluetooth Wireless Distance:10 m/393.70 inch Super Sound Quality:The noise canceling earphones designed with CVC 6.0 noise canceling chip that provides you high-fidelity stereo sound quality.Suitable Occasion:Fatigue free and tangle free that makes you no burden when doing exercises,suitable for running,jogging,hiking,biking,gym,etc. Longer Battery Life:Up to 3 hours music playing time when full charged.The in-ear wireless headphone battery status will be automatically displayed on the Phone screen.Package Content 1Bluetooth Headphone+1USB Charging CablePromise If the product has any quality problems,please feel free to contact us,we will help you solve the problem as quickly as possible.