Muvit 4 in 1 Bluetooth Earphones are a dual ear mini earphones. M6 earphones are a 5.1 Bluetooth earphones with a lower consumption power and a better signal. Dual earphones can also serve as 2 independent earphones and can be connected to a mobile phone. Features a built-in 3D touch, HiFi sound and LED 5.0 digital display. M6 4 in 1 offers TWS IPX5 waterproof earbuds, BT speaker, LED flashlight and 3300 mAh power bank. 4000 mAh dual battery charging bay will not only charge your earphones but cellphone as well. In conjunction with the charging bay Muvit 4 in 1 Bluetooth Earphones will accumulate up to 220 hours of endurance time and 180 hours of talk time.