Tip: for Worldwide use. Please ensure local area network is compatible. click here for Network Frequency of your country. Please check with your carrier/provider before purchasing this item.Notes: This product is a professional phone. Through refurbishing, the color may be a little different from the official color, but we guarantee the quality and durability of the phone. And this is a AAA Stock item, which means that there are no minor scrapes or scratches, and it is stored in a good condition.Main Features:- Display: 5.0 inch 1080 x 1920 pixels resolution capacitive touchscreen with 441PPI- CPU: quad-core 2.5 GHz Qualcomm Krait 400- GPU: Adreno 330- System: Android 5.0- RAM + ROM: 2GB RAM + 16GB ROM - Camera: 5.0MP front camera, dual 4.0 + 4.0MP rear camera, with dual LED - Bluetooth: V4.0- Other functions: digital compass, accelerometer, gesture control, proximity sensor, barometer- Battery: 2600mAh non-removable lithium polymer battery- Stand-by: up to 271 hours (2G), up to 496 hours (3G)- Talk time: up to 14 hours (2G), up to 20 hours (3G)- WiFi: 802.11 a / b / g / n / ac- SIM: nano SIM card- NFC supported- TV out: MHL- Audio output: 3.5mm jack- Radio: FM, RDS- Network: 2G: GSM 850 / 900 / 1800 / 1900MHz3G: HSDPA 900 / 850 / 2100 / 1900MHz4G: LTE bands 1800+ / 2600 / 900 / 2100 / 700MHz- Colors: gray, red, golden, blue, silver- Packing list: 1 x Cellphone, 1 x Charger, 1 x Micro USB Cable, 1 x Earphone, 1 x Case, 1 x SIM Card Needle, 1 x Tempered Glass Protector, 1 x English User ManualNote: we do not recommend for upgrading the system because of the NFC function Product Notes:1. Download your favorite apps through the Google Play Store or Market installed.2. Note: This smart phone is designed only to work with the current Android/Windows OS installed in it. Any alterations such as upgrades or flashing a newer version will void the warranty.3. The stated ROM amount shows the maximum available ROM with nothing installed. However, the Android/Windows OS and pre-installed software from the manufacturer will occupy some of this ROM. The available ROM on the device will therefore be slightly less than the ROM listed.