Calus N9pro Neckband Wireless Headphones.

The headphones offer Hi-Fi quality sound and heavy bass. They use Bluetooth V5.4 technology for wireless connectivity. Features include magnetic attraction earbuds and a built-in high-sensitivity microphone for clear calls. The product boasts an ultra-long standby time of 90 days and a continuous battery life of 20 hours. The neckband is designed to be comfortable for wear, making it suitable for sports and active lifestyles.