Product Summary
Synchronization mode: Bluetooth 4
\nMaterial: soft TPU
\nWaterproof grade: lP67
\nBattery type: Polymer lithium battery
\nBattery version:90 mAh
\nDisplay size: 0.96 inch
\nCharging mode: USB socket
\nEndurance time: 3-7 days of normal use and 7 days on standby
\nWorking temperature: Between -1O degrees to 5O degrees
