Visible light: This is a visible light band laser-head with continuous operation mode. Good performance: stable performance while running, laser-pickup can read the disc quickly. Compact structure: The simple and compact structure realizes the excellent operating performance of the radio audio system. Perfect accessory: Optical pickup laser-is a complete optical laser-lens replacement for worn or damaged laser-lens. Easy to operate: This optical pickup is easy to install, convenient, easy to use and easy to operate. Colour: Black material: plastic Model: -213B Item Type: laser-head Band Range: Visible Light Operation Mode: Continuous Incentive : ElectricExcitation Active substance: Free electron Optical path: Internal optical path Output form: Power supply type Transmission signal: OC Gate Type Speed: Low speed Channel: Single channel OutputWavelength: 650 (nm) Line width: . 20mm / 0.8in Package list: 1 x Optical laser-head Only the above package content, other products are not included. Note: Light 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.