Features 1 New generation of bluetooth 5 2 chip stable and continuous connection open the highlight moment of the game 2 Both left and right ear headsets have complete bluetooth headset function can play songs phone calls can be used alone can be used in pairs 3 6 5 hours of battery life for a single use and 27 hours of playback with charging case when it is fully charged 4 Ultra mini charging case easy to carry Specifications Brand TronsmartModel Ace Probluetooth version V5 2Microphone quantities 4 MicPlay time single charge 6 5HPlat time with charging case 27HCharging port Type CPackaging 1 Pair TWS bluetooth Headphones 1 Charging Case1 Type C Cable1 User Manual1 Warranty Card