Huadoo H3 IP68 Rugged Waterproof Shockproof Dustproof 3G Physical Keypad Unlocked Smartphone 2.4 Inch 64M RAM 128M ROM Quad Core Long Standby Outdoor Sports Dual SIM Cell Phone (Orange) Quad Core, Screen Size:2.4inch(240*320 resolution), Dual SIM: SIM1:WCDMA, SIM2:GSM RAM:64MB ROM:128MB, External Memory:Support up to 16GB, Standby-time:240hrs, Talk-time:13 hrs, NFC:Yes, Supported networks: 2G Band: GSM 850/1900/900/1800MHz,3G band:WCDMA 850/2100 The Sound is wonderful and loud enough with stereo headset, keep clear phone call and bring you a lot of fun and enjoyment. H3 has been certified by the CTA/CE/ROHS. As a radio transmitter and receiver, its design complies with radio wave radiation by international standard(ICNIRP),so as to ensure the safety of users of each age group with different health conditions. H3 is ultra rugged waterproof, dustproof, shockproof cell phone with several function keys shortcut keys (side keys), easy and convenient to use, the best choice for outdoor sports such as hiking, climbing, exploration etc.