Hassle-Free Purchase - Our company is equipped with a professional after-sales department to solve any problems for you, if you have operational problems with your single earpiece or other problems can contact us at any time, and we will reply to you within 24 hours, and cooperate with you to solve the problem. (Trucker headset can be charged by Type-C Cable Directly or charged by Charging Case.). Tailor-Made Design - Wireless headset with microphone single only is 15.8g in weight, beautiful and imperceptible. The ear hook is made from a soft and flexible rubber material, conforming to the shape of your ear and providing excellent comfort. The retractable ear hook and flip-boom arm swivel and Rotatable earplugs allow you to switch between left and right ears at will. The package comes with different sizes and shapes of spare earplugs that can be adjusted according to personal needs. Newest Chip Connect 2 Device - The new generation V5.1 chip 33ft/10m ultra-long distance transmission gets rid of the space limitation, the signal is more stable and transmission is faster. The headphone from the charging box takes out the instant automatic power on and back connect. earpiece supports pairing with 2 devices such as iOS or Android cellphones, tablets, and laptops at the same time, letting you enjoy the freedom of wireless!. Sensitivity Touch Keys - The combination of touch keys and mechanical keys says goodbye to the tedious, so that the operation is simpler and easier to get started. Just long touch the function key for 1 second to wake up Siri, Easily mute/unmute with the double press of a "-" button, and even announces the phone number of the income caller. The sensitive touch button is convenient for you to manage music and calls, freeing your hands and protecting your driving safety. Battery Display Charging Case - headset comes with a 400 mAh charging case with an LED display to make it obvious to show the battery power of the case. Providing 55 hours of playtime life for the earpiece, a single charge of 1.5 hours can provide 10-12 hours of music/talk time. The earphone charging compartment height is compressed to only 25mm, Ultra-thin design with beautiful lines to provide convenient storage and protection without losing the beauty.