У вашего броузера проблема в совместимости с HTML5
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5.5 inch Vkworld vk700 Pro Android 4.4 3G Phablet MTK6582 Quad Core 1.3GHz 5.0MP + 13.0MP Camera 8GB ROM WiFi GPS
Main Features:
Display: Front Screen: 5.5 inch HD LCD Screen, 1280 x 720 pixel
CPU: MTK6582 Quad Core 1.3GHz
GPU: Mali-400MP
System: Android 4.4
RAM + ROM: 1GB RAM + 8GB ROM, TF Card up to 64GB
Camera: Back camera 13.0MP with flashlight + front camera 5.0MP
Bluetooth: 2.0
GPS: Yes
SIM Card: Dual SIM dual standby, one is standard SIM card, the other is Micro SIM card
Network:
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 850/2100MHz