M4 Spec
Host size:41*18*9mm
Battery Capacity:60mAh;Standby Time:15 Days
Material:Silica gel Adjustable length:160-245mm
Display:0.42 inch OLED
Screen operation:Curved touch
Motion sensor:Three-axis gravity acceleration sensor
NORDIC:51822
Waterproof:IP67
Operating temperature:~20~60℃
Bluetooth:compatible bluetooyh4.0(Android and IOS)
Charger:Suction way Charger
Packaging:paper package、Date lines、Instructins
