Features: - Compact size. - Easy to use and move. - Rechargeable battery. - User doesn't need to change battery. - W.L.S. function (Working Length Select) function. - Doctors can select own working length for operation convenient. - Color OLED screen. - Improve user recognizing on treatment. - Works with smart device (option). - Show the measurement condition on smart device by wireless. - Connection by with Bluetooth technology. (Android device only). Specifications: - Length Approx. 55 x 85 x 21 mm. - Weight Approx. 56 Gr. - Life time10 Years (It may vary depending on the user's management status). - Battery: Life time 5 Years. - File hook: Length Approx. 200 mm (included hook tip). - Lip hook: Length Approx. 65 mm. - Probe cord: Length Approx. 1.3 Meter. - AC adapter: Spec5V 2A.