This is not an obligation, but can be a plus depending on the brand's indications: "Thanks to the integrated Bluetooth, the K 5 Premium Smart Control pressure washer can be connected to the Kärcher Home & Garden app. In this way, the user can be supported via his smartphone in different cleaning situations and for different objects, for even better cleaning results. The app offers many useful functions such as the application advisor with practical tips and tricks, installation instructions, care and maintenance instructions and the Kärcher service portal. In addition, the unit has a boost mode for more power, a G 180 Q Smart Control gun with LCD display and the 3-in-1 Multi Jet lance. Pressure settings can be made either directly on the gun or transmitted to the gun via the app using the user advisor. The LCD display can be used to check the pressure level setting, whether the boost mode can be started or whether the device is still in standby mode. Further equipment details: the hose reel for comfortable handling, the Plug 'n' Clean cleaning system, the high-quality aluminium telescopic handle as well as the parking position for access to accessories at any time."

Yes, it always comes with it. If it doesn't, it's an oversight on our part, so just contact customer service and we'll send you one for free. The plug is the only difference.

No, the coupling is permanently installed and has an integrated strainer.

Schuko plug on the power cable. Safe solution (the unit has a lot of power!): Cut off the Schuko, attach an IP-protected CH plug for 10 CHF and then it is a CH version.

No additional power adapter is required to operate the product. The product already has the appropriate plug for the following country: Switzerland