Bluetooth 5.0 Headset TWS Wireless Ohrhörer Mini Ohrhörer IPX5 Stereo Kopfhörer
Waterproof Rate: IPX5 (Sweatproof). Taking the two earbuds out of the charging case, the left earbud will connect with the right automatically, just open the bluetooth function on phone, and find the model ”L21”to connect.