No need for wires, thanks to true wireless stereo (tws) technology The air kab wireless earphones connect to your smartphone, tablet or laptop without the need for any wires. They feature hall switch technology, so the headset connects to the already-paired device as soon as the case is opened. The true wireless stereo (tws) technology also ensures a stable connection between the two earphones, even 10 metres away from the device. The case allows up to 4 recharges, wherever you are The case protects the earphones from bumps and scratches, but also had a very important charging function. If your earphones are discharged, in fact, you will not need to connect them to a charger or a powerbank; simply place them in the case to have them fully charged again in 1½ hours. The case has power for 4 charges, so you can enjoy music and calls all day long. They have an autonomy of 5 consecutive hours: you can use them all morning, recharge them during lunch, and use for the rest of the day, wi