Ear Headworn Wireless Bluetooth Earphone Noise Reduction Compact Earphone Features: Built in large capacity lithium battery. Low power consumption, multiple battery life, listening to music, watching TV shows, and playing games. Satisfying the needs of the day. Composite diaphragm sound unit, significantly improved performance, wider spatial stereo, and focused listening experience. Lightweight, paired with an integrated skin friendly headband for a delicate touch, evenly disperses the pressure the head from the headphones. Low power consumption and long . Faster, more stable connection, wider range, high-speed, non-destructive transmission, and continuous connection. Not stuck. Enjoy good music quietly. Easy to adjust according to your needs, easy to complete various commands with ease and ease, and between multiple modes at will. Product Description: Specification: Material:Aluminum alloy Bluetooth protocol:5.0 Battery life: 4-8 hours (hours) Transmission range: 10 meters Material:ABS Package List: 1XBluetooth headset Note: Please allow slight error due to the manual measurement. Thanks for your understanding. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real . Please take the real one as standard.