Features: Ultra thin 3.9mm lens helps to check your ear comfortably, suitable for different size of ear canal. Intelligent constant temperature design, you can adjust the temperature as you need. Ergonomical design, comfortable to take in hand and convenient to carry. Built-in 200mAh lithium cell, has long endurance time. Also can be used to check teeth, nasal cavity, throat, scalp root and other body parts, ect. Specifications: Material: plastics + metal Color: black, white ，optional， Network standard: IEEE 802.11b/g/n Working frequency: 2.4G Image transmission: 20fps Working temperature: -10~40 Power supply: 200mAh lithium cell Endurance time: 70mins Charging time: 30mins Input current: D C 5V/300mA Pixel: ultra high clear camera Probe diameter: 3.9mm / 0.15in Package size: 164 * 68 * 18mm / 6.46 * 2.68 * 0.71in Package weight: 55g / 1.94ounces Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * Otoscope 1 * Small Bottle of Ear Spoons 1 * USB Cable 1 * User Manual