I purchased these directly from music lens and never use them. I did charge it one time to test them. But they have not been worn for more than two minutes. They are in mint condition and they do work surprisingly well.

MusicLens is the unique smart glasses that speak to music lovers, trendsetters, and those with busy lifestyles all at once. You can listen to music, tune in to the radio, and make phone calls without putting anything in your ears. What makes it special: ✅Bone conduction audio with enhanced bass ✅4GB of offline storage available ✅Bluetooth 5.0 ✅Touch controls and wear detection ✅9 hours of continuous play

Bone conduction audio is a revolutionary new achievement in audio technology that allows you to hear crystal clear sound without putting anything into your ears. MusicLens’ custom-designed bone conduction speakers rest outside the ear and send audio signals through the skin and bone via vibrations. This means you experience your music in striking clarity while still being able to hear the world around you. Keeping your ear canals empty and your senses sharp is a safer, healthier, and more comfortable way to listen to music.

MusicLens are the only smart glasses with bone conduction audio that features enhanced bass. Experience truly dynamic sound whether you’re into hip hop, jazz, or pop with booming bass that gives you a front row seat to all your favorite bands.

Enjoy the freedom of hands-free listening with this set of 2 MusicLens bone conduction Bluetooth sunglasses. The sleek black and red designs makes them a stylish accessory for any occasion. The sunglasses feature advanced bone conduction technology to deliver high-quality sound directly to your inner ear, without the need for earbuds or headphones.

The MusicLens sunglasses are perfect for outdoor activities, providing a safe and comfortable way to listen to music or take calls while on the go. With a range of up to 30 feet, you can stay connected without ever having to take your phone out of your pocket. These sunglasses are new and have never been used, making them an excellent choice for anyone looking for a high-quality audio accessory.