Bluetooth 5.0 version make you a quick and good connection with your cell phone.  Logo can be printed on 3 position on earphone case and battery case.  Auto Bluetooth connection after take out the earbuds from case.   2019 hottest promotional TWS earbuds model  As tiny size as a real macaron.  MOQ 500pcs Version:5.0+EDR Charging Voltage:DC 5v Charging time:0.6h Talk time: 3H Operating distance:10m Standby time:120H