The Cel-Fi G31 for Spark Smart Repeater is the ideal product to boost and distribute a 3G/4G mobile signal within your Truck, Car, Caravan, Boat, Fixed locations, supporting voice and mobile internet for multiple mobile devices, The Cel-Fi G31 Smart Signal Repeater, leverages the award-winning Intelli boost signal processing to deliver the best voice and data wireless performance. This Single band 3G/4G switchable solution can also be utilized in Residential & commercial properties, Network Safe Provides Coverage for automotive applications Simply install Ce-Fi G31 inside your vehicle and enjoy having great 3G or 4G mobile reception, Your Cel-Fi G31 can be configured to improve the mobile coverage for all types of vehicles from Truck, Car Caravan Boat, all with only a change in antenna. Cel-Fi is the only consumer mobile phone booster approved for use by mobile carriers in New Zealand. Cel-Fi G31 has been the most successful Vehicle booster to date, as it is the only Booster that boosts the 700Mhz network being Band 28 for Spark & One NZ, this band is what gets the further Est into the back blocks / remote locations Due to only a few countries' utilizing band 28 these where end of lined, consequently we have limited stock!! This listing is for a Spark 4X4 / truck / 4X4 kit only, boat, Caravan, Car require alternate antennas depending on requirements / expectation, if you require, following consolation to determine Antena required can provide listing. Also, can provide Listing for One NZ kits Note These units are pre-registered to end user Prior to NZFSS shipping! Spark units need approval Via Spark re end user, Vehicle make model Rego end user contact details, Phone number / address & Email NZFSS Handles the approval process on your behalf! Prior to initiating approval & registration process NZFSS will require a small deposit Ideally units to be installed By Auto Electrician of your choosing, under Direction from NZFSS