Auto pair true wireless earbuds with tempered glass covering. Bluetooth® 5.0 for stable connection. Playback time is up to 4 hours at max volume, and with the 500mAh power capsule the earbuds can be charged at leastr 5 times. Built-in multi-function button support to activate voice assistant, handy control to play/pause/answer/hang up/reject/next track/previous track. Delivered in a premium gift box. ABS Plastic, Glass, Acrylic.