Reverse Folding Windproof Umbrella with C-Shaped HandleThis umbrella features a unique reverse folding frame that allows you to easily enter and exit cars, doors, and other tight spaces without getting wet. The umbrella collapses inwards to trap any water droplets inside the canopy to prevent leakage. The top layer is coated with Teflon protective coating that is waterproof causing rain to bead up and dries with just a few shakes of the umbrella. An additional layer is added to the underside of the canopy

PC Windows client supports Windows XP/Vista/Win7 both 32 and 64bits

7V  Li-ion Battery Auto Power Off 1-9 mins Size 66*68*37 (mm) Charger in  5V (micro usb) Backlight AUTO OFF   Interface (in and out ) SO239 Weight 220g (include battery)

Push red button -switch onPush red button  at once to mode "POWER meter "

strong anti-interference ability

5 W)Maximum power: 120WImpedance: 50ΩSize: W 76 X H 77 X D35 mm

1 min  to  9 mins 5 POWER OFF 0-9 3 "0" is always on

There are easy ranges for you to choose

Dynamic range: -105dBm to -15dBm

4Ghz frequency band

light green

50 ohms wideband Nagoya NA-773 telescopic antenna included

Build-in  Li-ion battery