Purpose:In the same environment, there are too many WiFi signals occupying the same frequency point, which can affect each other and cause poor WiFi signal quality. With this assistant, you can easily check which frequency point has more signals and which frequency point is relatively idle. You can adjust your WiFi and switch to a relatively empty frequency point to improve the communication quality of your WiFi. Battery capacity: 600mAh lithium battery, standby time of about 4h Charging method: Type C Charging voltage: 5V Screen Size: 2.4Inch usage method: 1. and hold the button to turn on the device, and and hold it again to turn it off 2. the button once to start scanning, the button again to pause scanning 3. The waveform on the screen displays the WiFi signals of all 2.4G frequency points. Originally, only the strongest WiFi signal was displayed for each frequency point. But if there are multiple signals at the same frequency point, they be displayed with numbers below the corresponding coordinate ruler, such as displaying the number 5, indicating that there are 5 WiFi networks occupying the same frequency point. The waveform below the screen corresponds to the waveform of the 5G signal. The interpretation method is the same as above. Due to the higher frequency range of 5G signals, it is not possible to label all frequency points on the coordinate ruler. Colour:As Shown Material:ABS Package Contents: 1 x Host 1 x Type-C charging cable 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.