Supports 4G NETWORKS,it is unlocked and supports multiple NZ carrier networks Big Button mobile Phone for Elderly, artfone A400 4G phone, 1800mAh Battery, Unlocked Senior Mobile Phone with SOS Emergency SOS Button / 1800mAh Battery / Charging Dock / Easy-to-Use Dumb Phone with Loud Volume / Time Reporting?Speed Dial / USB-C SOS Button: Stay safe with the A400's SOS emergency button, a must-have feature for elderly mobile phones. Set up to 5 emergency contacts; a 3-second press automatically dials these numbers until answered. 4G Network Compatibility Unlocked and supports multiple carrier networks User-Friendly Unlocked Phone with Big Buttons Featuring a UI operating system, is a large-key senior phone with a raised backlit keypad designed to meet the tactile needs of the elderly. The prominent red and green buttons make dialing and texting easier, reducing errors. This keypad phone is a no-contract device that does not support internet browsing. Beyond basic functions like alarms and radio, it is exclusively designed for calls and SMS Focused on Seniors' Visual and Auditory Experience equipped with a 2.4-inch LCD high-definition display, offering larger fonts and clearer menu icons to protect seniors' eyesight Worry-Free Battery Life Uses high-quality materials for its battery, boasting a capacity of 1800mAh, offering 8-10 hours of talk time and nearly a week of standby time on a full charge. Charging Dock Included: Simply place the phone on the dock—no cables needed. Instruction: Display: 2.4" QVGA display RAM: Single Nano SIM & 128MB+48MB Battery: 1800mah Package: 1 x Elderly Phone 1 x 1800mAh Battery 1 x Charger USB Cable 1 x Charging Dock 1 x User manual NZ stock ready for immediate dispatch