2.4-inch high-definition color screen,The product uses a 2.4-inch high-definition color LCD display, which has smooth operation and fast response speed. Easy to operate,The shortcut keys made of silicone material not only greatly simplify the operation steps, but also feel comfortable. Programmable control,Provide host computer software and communication protocol to facilitate customers' secondary development. The host computer software has the function of drawing arbitrary waveforms. Portable design,It adopts high-quality Metal shell, compact size, easy to carry, and can be used for long-term outdoor work with a 5V 2A mobile power supply (power bank). Model Number:JDS2900 Display Size:2.9 Inches & Under DIY Supplies:ELECTRICAL frequency range:0-50 MHz Amplitude range:2-5Vpp Bias range:-9.99V-9.99V The product appearance and printed words may vary depending on the batch, but this does not affect use Voltage: AC110V Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Colour:As Shown Material:Metal Package Contents: 1 x Dds Function Frequency 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.