X4 Booster™ Jump Start Tire Inflator Power Bank
- Jump starts 12V cars (up to 9L gas / 5L diesel)
- 150 PSI tire inflator with digital display
- Power bank for phones & tablets
- 500-lumen LED light with SOS & strobe
Ships in 1–2 business days
Shipping & returns
Orders are dispatched within 24 hours of checkout
Delivery takes 5-12 days
Free delivery on every order. Not happy? Return it within 30 days.
Contact support
Any issue you might have, we are here to help!
Contact support at:
Support@Romantid.com
Or by phone:
979-2561612
We answer quickly and we will handle your request
🤝
The Car Magic Towel
See it in action. Watch how it works
X4 Booster4-in-1
Jump starter, tire inflator, power bank and LED light — one compact device that lives in your glovebox.
Every detail, built to rescue
Rugged shell, clear digital display and all the accessories you need.
150 PSI tire inflator
Set the pressure — it stops automatically
Light the way
500 lumens · Normal, SOS & strobe
Charge on the go
Doubles as a power bank for your phone and tablet.
Everything in one box
Cables, hose and nozzles included
Dead battery? Back on the road in minutes.
No second car, no waiting for roadside assistance. Clip the clamps on, press start and drive.
- Works with 12V vehicles
- Up to 9.0L gas & 5.0L diesel engines
- Lithium battery — light and compact
150 PSI Super-Fast Air Pump
An upgraded motor and 22mm cylinder inflate a standard car tire in about a minute. Set your target pressure and it stops on its own.
Smart digital display
Read the live pressure, choose your unit (PSI, Bar, kPa, kg/cm²) and set a target. The pump does the rest.
Power at your fingertips
A built-in power bank keeps your phone, earbuds and tablet charged on long drives, camping trips or during a power cut.
Everything you need, ready to go
Unbox it, charge it, and keep it in the car.
- Jump starter with air compressor
- Air pump hose
- Gas nozzles
- Jump cables
- USB-C charging cable
Jump start in 3 simple steps
Simple enough for anyone to use — no second car needed.
- Insert the jumper cable into the booster
- Connect the clamps to your car battery
- Start your engine
Specifications
| Functions | Jump starter Air compressor / tire inflator Power bank LED flashlight |
|---|---|
| Vehicle voltage | 12V |
| Engine compatibility | Up to 9.0L gas Up to 5.0L diesel |
| Battery | Lithium |
| Max pressure | 150 PSI |
| Inflation speed | ≤1 min — 195/65 R15 tire to 30–36 PSI |
| Cylinder diameter | 22 mm |
| LED light | 500 lumens Normal / SOS / Strobe |
| Inflates | Cars, motorcycles, bicycles, balls |
| Charging | USB-C |
Frequently asked questions
Which vehicles can it jump start?
12V vehicles with engines up to 9.0L gas or 5.0L diesel — most cars, SUVs and small vans.
What can I inflate with it?
Car, motorcycle and bicycle tires, plus balls and other inflatables using the included nozzles.
Can it charge my phone?
Yes. It works as a power bank for phones, earbuds, tablets and other USB devices.
How do I recharge it?
Use the included USB-C charging cable with any USB wall adapter or car charger.
Customer Reviews
Great product - saved me a few times already
I ordered 2 times from this store and very pleased with my order
A+++
Highly recommended!!!! Arrived fast
Nice device, works well. I had a problem with the shipment but customer support solved for me
Very good
I love it - bought one for my husband after trying it myself
100% product and also service
Very nice product, arrived fast
