HP336 4G IP68 Rugged Phone, 3.5 inch, 4500mAh Battery, Network: 4G, BT, FM, SOS, Torch 1. Chipset: SC-T107 2. Display: 3.5 inch, IPS, QVGA, 240 x 320 3. Band: 2G GSM 85090018001900MHz 3G WCDMA 85090019002100MHz 4G LTE B12357820; B384041 (Note: This frequency band combination offers very high global compatibility, covering almost all countries and regions. Limited functionality may occur with a very small number of specific carriers or in remote areas, and there are very few countriesregions where it will not work at all.) 4. SIM Cards: Dual SIMs dual standby 5. Memory: RAM 48MB + ROM 128MB 6. Speaker: 2030 waterproof loud speaker 7. Camera: 0.3MP 8. Torch: Dual LED lights strong Torch 9. FM: Wireless FM radio 10. BT: V5.0 11. Sockets: 1 x Type-C, 1 x 3.5mm audio jack, 1 x USB output jack 12. Battery: 4500mAh Li-Polymer 13. Others: Mobile power, Volume +- key, SOS key 14. Size: 159 x 72 x 19mm Features: 1. Calendar, alarm clock, calculator, notepad, mobile power, flashlight, BT V5.0, e-book reader, browser, 2. Phonebook with grouping function, 8 groups of speed dial, SOS button + 5 emergency call numbers, can be used as an emergency power. 3. Languages: English, Vietnamese (other languages ??are being developed and will be added later) 4. Multimedia: DV, video recording, voice recording, FM radio, camera 5. Rugged design, true IP68 waterproof, dustproof, and shockproof, can be submerged in water (provided the back cover screws are tightened completely and the bottom USB port cover is properly sealed). Waterproof Setup Required: Step 1: Screw back cover TIGHT (Use tool included) Step 1: Push USB seal FLAT (Bottom port) Then IP68 Protected: 1.5 meter 30 min | 1 meter 1hr No Setup = No Warranty