1. Easy to operate and weld, paired with a 4Ω 3W speaker for better sound quality. 2. Paired with RDA5807 radio module, it has the advantages of noise cancellation, bass enhancement, high sensitivity, low noise, and strong anti-interference ability. 3. the button to adjust, switch channels, increase or decrease volume, clear all channels, and search and save channels again. 4. There are 15 sound levels to adjust, which can be adjusted to a sound that satisfies you. 5. The LED light displays the operational status. Equipped with power-off memory, automatic station search and storage function. Widely applicable, suitable for school teaching, interest cultivation, scientific research and development, DIY enthusiasts, etc. Style: Simple;with display Kit Name: Simplified RDA5807 Radio Production Kit Power supply method: 3xAAA batteries (batteries not included) or USB 5V power supply (choose one) Receiving radio frequency band: 87-108MHz Maximum operating current: approximately 400mA (when the sound is set to maximum) Note: This product is a DIY kit, not a final product! This soldering project requires basic electronics knowledge and hands-on skills. It is DIY kit Only. That is to say, all items are not welded on the pcb board. have to weld them on the pcb board by themselves. It's DIY kits, needs to by yourself. Colour:Red & Transparent Material:PCB+components+acrylic Package Contents: 1 x Radio DIY kit 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.