Easy Pairing & Bluetooth 5.0 Technology The most sophisticated Bluetooth 5. 0 technology is used. HSP, HFP, A2DP, and AVRCP are supported by TOZO T12. Pick up two headsets from the charging case and they’ll instantly link; then, with just one step, pair the earphones with your phone’s Bluetooth setup for in-call stereo sound. Also has a tangle-free, quick and reliable transmission. Smart LED Digital Display with Touch Control TOZO T12 Headset has touch control sensors that help to reduce strain on your ears when you click the buttons for various tasks. The clever LED digital panel in the Wireless Charging case may verify battery usage information at any moment. Premium Fidelity Stereo Sound Quality, Comfortable Wearing TOZO T12 wireless earbuds have curved in-ear silicone earhooks that keep wireless Bluetooth headphones in place even when moving around. The 10mm Large Size Speaker Driver in the TOZO T12 provides a very natural, authentic sound and powerful bass performance. The drive area is 2.77 times larger than the regular drive area. Waterproof to IPX8 Inner Nano-coating on the earbuds and charging case allows them to be waterproof for 30 minutes at 1 meter depth. It is suited for water-resistant sports. Ideal for working up a sweat at the gym. Wash the earphones and the base as well. (Note: Feature cannot be guarenteed on base models) On-the-go chargingFrom a single charge, playtime is over 6 hours, with a total of 28 hours with the charging case. Fast charging is available to fully charge the rechargeable case only 1.5 hours via fast charge USB-C cable or less than 2 hours via wireless charger. Providing convenient charging way with no strings attached.