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Main control processor Novatek96670 SDRAM DDR3 2GB SPI Flash 8MB Serial Flash Front camera module Imaging chip GC4653 _MIPI Aperture 1.5 Viewing angle D: 123.4° H: 105° V: 56.4° Lens Specification 2G4P+1_650IR Rear camera module Imaging chip GC2053_AHD Aperture F/NO2.0 Viewing angle D: 130° H: 110° V: 54° Lens Specification 2G2P+1_650IR Speaker 8Ω/1W speaker oval 20*14mm MIC Microphone 4015 standard omnidirectional microphone -42dB Expansion memory U3 or above MICRO SD supports up to 256GB WIFI optional, optional built-in 8918_2.4G WIFI module GPS module optional,