1. Do not connect 3S or above batteries to the Mini tuner. Otherwise, permanent damage will be caused2. Before powering on the Mini tuner, please install the matching antenna. Otherwise, the tuner PA chip will be damaged.3. 1W version: Reactor-style shape with embedded multi-color LED lights, 50Hz refresh rate is green, 500Hz is blue, and multi-color gradient after turning on WiFiRF TX module is based on the ExpressLRS project, an open-source RC link for RC applications. ExpressLRS to achieve the best possible link performance in both speeds, latency, and range. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance.1W version: 2.4GHz: 25mW/50mW/100mW/250mW/500mW/1W1W version: with heat sink, can work for a long timeInput voltage: 5V~12VHave WifiHave OLED ScreenDue to different batches, there may be differences in the appearance, color, and printing of the product, which will not affect its use.Colour:blackMaterial:plasticPackage Contents:1 x TX Module KitOnly 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.