Features: Programming Key, Kibitz Function Permission Settings, Time Out Timer Selective Call, Clear Audio Battery Power and Network Quality Power on Voice Broadcast Up Key Definition: Wifi & Power Query, Low Power Indication GPS Satellite-positioning Technology (Optional) Accessories Optional: Wifi IEEE802.11b/g/n, Bluetooth 4.0 (Bluetooth Low Energy) Technical Specifications: 1. Frequency Range: WCDMA Band1/2/5,GSM Band 2/3/5/8; 2. CPU:MT6572M,RAM:LPDDR3-SDRAM 512MB,Storage:MCP Flash Memory 4GB,OS:Android 4.4.2; 3. Operating Voltage: DC 3.7V;â?¤1.3A 4. Battery Pack: 4000mAh Li-polymer 5. Kenwood 2.5mm Earphone Jack USB 2.0 HS 6. Product size: 56(W)100(H)32(D) 7. Weight: 180g