The minimum scanning power of the 5.8G band setting of this product is about 100mW, and anything below 100mW will not be displayed!!! 2.4G Scanning Frequency: 2.3 - 2.6G 5.8G Scanning Frequency: 5.1 - 5.9G Recognition Distance: 150 - 350m (depending on TF power) Charging Input Voltage: 5V/500mA Working Time:about 10 hours Battery Capacity:250mAh Battery Charging Time:about 5 hours Note:This product does not support PD fast charging. Please do not use a fast charging charger for charging. Channel spectrum width:40mhz 42-5210mhz 5.21GHz 50-5250mhz 5.25GHz 58-5290mhz 5.29GHz 152-5760mhz 5.76GHz 160-5800mhz 5.8GHz Channel spectrum width:20mhz 36-5200mhz 5.18GHz 40-5200mhz 5.2GHz 44-5220mhz 5.22GHz 48-5240mhz 5.24GHz 52-5260mhz 5.26GHz 56-5280mhz 5.28GHz 60-5300mhz 5.3GHz 64-5320mhz 5.32GHz 149-5745mhz 5.745GHz 153-5765mhz 5.765GHz 157-5785mhz 5.785GHz 161-5805mhz 5.805GHz 165-5825mhz 5.825GHz Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black Material:plastic Package Contents: 1 x Signal Scanner 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.