New, Unused 【High-Quality Sound】These are motorcycle earphones that use Bluetooth 5.0. With DSP noise suppression technology, signal transmission is faster and more stable. High-quality speakers are used, and the sound quality is improved with new technologies such as noise processing and echo prevention. Enjoy wireless 2-channel stereo music while riding, thanks to advanced Bluetooth and DSP noise suppression technology. 【10-Second Automatic Phone Answering Function】In automatic answering mode, you can manually hang up the phone within 10 seconds, and it will automatically answer after 10 seconds, making it convenient for listening to music and answering calls. These motorcycle headphones eliminate the need to take your hands off the handlebars, increasing safety while riding. 【Easy Operation】There are three operation buttons. By simply pressing the buttons, you can achieve the following functions, making this a user-friendly and convenient wireless helmet headset: skip to the next/previous track, decrease/increase volume, play/pause, and redial. Operation is simple and convenient. 【Ultra-Long Standby】Built-in 180mAh lithium battery, with low energy consumption. With a 1.5-hour charge, it can stand by for about 160 hours, and the continuous working time is about 8 hours. The Bluetooth headset will give a "Power low" warning when the battery is low. 【Sweat-Proof and Dust-Proof Function】The ear pads have a sealed design, making it difficult for sweat and dust to enter, and further extending their lifespan.