2pcs DC 5V To 9V USB Booster Cable Mobile Power Monitoring Power Cord 15DecTape-iPad Keyboard wrist guard

wrist guard

Dual band reduces interference and allows for better connection to more WiFi devices

and the tail fin needs to be glued to the battery buckle

The clamp arm can be adjusted flexibly

2pcs DC 5V To 9V USB Booster Cable Mobile Power Monitoring Power Cord 15DecTape-iPad Keyboard wrist guard1. USB mobile power booster cable 9V 12V, suitable for USB lights, USB fans, radiators, 5V mini speakers, etc. 2. Universal for all mobile power supplies, positive and negative output inside the DC plug 3. Plug: outer diameter 5. 5mm, inner diameter 2. 1mm, inner positive and outer negative 4. Function: power other devices through charging treasure 5. Cable length: 1. 3 meters 6. 9V booster line: with booster components, the USB input 5V voltage