Product: Spy Cross Necklace Camera
Mini Camcorders Audio Video Recorder
Take Photo Function. 
Video Resolution: 640 x 480
Video format: AVI 
Video Coding M-JPEG
Video Ratio 4:3
Automatic The white balance adjustment
Player software: the mainstream video player software
Camera Visual Angle 90 degree
Image Sensor 1/4 CMOS Sensor
Photo resolution: 1280 x 1024 
Photo format: JPEG 
Photo ratio: 16:9 
Microphone: built-in (Synchronized Recording of Audio and Video Signals) 
Auto shutdown: YES (after 1 minute of inactivity) 
Charging voltage: DC-5V
The interface type: mini 5-pin USB
USB Port: Standard 1.1/2.0 USB Port 
Battery capacity: Built-in 220mAh lithium battery 
Battery type: A + high capacity polymer lithium battery
Working time: 90 minute for video recording 
Charging time: 2-3 hours 
V Colour: Black
Support system: Windows XP/vista/7/8/8.1/10; Mac OS; Linux; 
Memory: built-in 8GB
Machine: weight: 12g/7*3.5*1.1cm

Package Contents: 
1x Cross Necklace Camera
1x USB cable
1x Necklace
1x User manual