Dual noise reduction system effectively filters external noise, ensuring crystal-clear calls with minimal interference for uninterrupted communication. Equipped with a rotatable shaft, this Bluetooth-compatible headset can be effortlessly adjusted 180-degree for comfortable wear on either the left or right ear, providing flexibility and convenience. Featuring a non-in-ear design with open audio, this headset utilizes air conduction to liberate the ear canal, offering a comfortable fit without causing discomfort even during extended wear. Boasting excellent waterproof capabilities, this headset allows you to engage in various physical activities such as running, cycling, and fitness without being hindered by raindrops or moisture. Ideal for sports enthusiasts and everyday users alike, this headset is perfect for sports activities, home use, music listening, running, cycling, walking, and fitness routines. Item Name: Wireless Earphone Material: ABS Battery Capacity: 200mAh Bluetooth-compatible Version: 5.4 Features: Lightweight, Rechargeable, Practical Size Details: L: 5.6cm/2.2", W: 5cm/1.97", H: 1.5cm/0.59" (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 Wireless Earphone