SoundPeats Air4 Lossless Audio Wireless EarbudsThe built in Bluetooth 5. 3 of Air4 offers faster and smoother multipoint connection and data transmission. Simultaneously connect to two devices such as smartphones, tablets, and smartwatches, without the need for reconnection. It also comes with a low latency mode of 88ms for gaming and video calls and a long lasting battery life of up to 26 hours with the charging case, allowing for uninterrupted listening even during extended daily use.