Features： 1、Use with 5in External Screen: Can be used with a 5 inch external screen. Reversible, foldable, multi angle adjustment is more convenient to use and watch. 2、Help Observe Thermal Details: Thermal imaging monocular camera can help you gain insight into thermal details hidden deep in dark nights. 3、Daily Life Waterproof: Infrared thermal monocular is windproof and rainproof, even used in harsh environments, making travel and observation easier. 4、Battery and Battery Charger: Handheld screen has two 18650 2500mAh lithium batteries. Thermal imager has 4000mah lithium battery. Battery charger is . 5、Image Transmission: WiFi image real time transmission, APP mobile mhone mnterconnection support. Support USB charging, external power bank can be supplied. Specification： Item Type: Infrared Thermal Monocular Material: ABS Color: As Pictures Shown Weight: Approx. 2225g / 78.5oz Handheld Screen Power Supply: 2 x 18650 2500mAh Lithium Battery (Supplied with Matching Battery) Thermal Imager Battery: 4000mah Lithium Battery(Built in Battery Delivery) Picture Pixels: 384x288 Palette: Black Hot, White Hot, Red Hot, Iron Hot Focal Length: Approx. 15mm / 0.6in Electronic Zoom: 1.0~4.0X Viewing Angle: 24.9°x18.7° Wavelength Range: 8-14μm Thermal Image Frame Rate: 50HZ Image Transmission: WiFi Image Real Time Transmission, APP Mobile Phone Interconnection Support Display: Color LC0S 720x540 (Eyepiece Diopter Adjustable) Charging Type: Support USB Charging, External Power Bank Can Be Supplied Protection Level: IP66 Operating Temperature: -20°C~50°C Package List： 1 x Thermal Imager (Built in Battery Delivery) 1 x Thermal Imager Storage Bag 1 x Handheld Screen (Built in Battery Delivery) 1 x Manual 2 x Battery 1 x Battery Charger 1 x Lanyard 1 x Video Sync Data Cable 1 x Video Transmission Line 1 x Metal Gasket 1 x Wrench 1 x Screw 1 x Storage Box