Built-in storage: Built-in SPI flash memory chip can store 100 pictures. Connect computer or mobile phone via data cable to view and copy image filesDurable shell: The shell adopts FR4 epoxy resin plate to improve internal components and prolong service lifeCharging mode: Li-ion battery power supply, USB C charging, battery life up to 4 hours, can be used during chargingDisplay temperature: display and track the maximum, minimum and center temperature on the 2.8 inch screen with 320x240 resolutionCompact and portable: measuring range from - 40 to+300 , 8Hz dynamic rate. Small size, easy to carry, integrated design, no external equipment Colour:blackMaterial:pcbSize: 85 x 55 x 30mm Package Contents:1 x thermal camera Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.