Avantree wireless neckband earphones

Bought a couple years ago, but never used them. New condition. Never even tried them. If you have any questions, feel free to ask. A lot of information about them below. Avantree NB17 Bluetooth 5.0 Neckband Active Noise Cancelling Earbuds with Ambient Aware Mode, IPX5 Water Resistant ANC Headphones Earphones, Up to 20H Standby time with ANC ON Active Noise Canceling (ANC) technology reduces unwanted low frequency background noises, allowing you to focus on your music, watch movies or make phone calls without distraction – wherever you go. Includes an ANC only mode (perfect for long haul flights) lasting up to 24 hours. Or enjoy up to 9 hours of non-stop music with ANC enabled or 13 hours of play time with ANC off. Equipped with the latest in Bluetooth technology for seamless pairing with your phone, rock-solid stable connection with a 33 ft. (10m) long range and ultra efficient battery use. Significant noise isolation and high precision 12mm dynamic drivers deliver a clear, well-balanced, premium sound profile. Stay aware of your surroundings and stay safe while connected, with the Ambient - Hear Through mode. This mode allows you to hear the traffic around you or even engage in casual conversation - all while keeping the earphones on and listening to your music