This cap combines multiple technology and hides them underneath the cap .
The bluetooth connection allows you to connect to your phone and music player which supporting bluetooth.
Contain Micro SD Card input for both music playback and video record.
Featuring private remote control to turn on and off for power and video recording, and there's also the volume adjustment.
The cap design to cover the shine from your eyes while you jog, bike, or exercise in the outdoor .
If you want to clean your cap , you can remove the screws and take the main unit and earphone out of the hat.
There are Spy cam in front of the cap that you can record a airsoft game without holding a Camera

DVR Specification:
Video Format: AVI
Music Format: Mp3 & WMA
Memory Card: Micro-SD : 56MB/512MB/1GB/2GB/4GB /8GB

Battery & Power
Music Playing Time: 4 hours
Video Record Time: 2 hours
Battery: 3.7V 300mA Rechargeable Li-Polymer
Nominal Charging Time: Within 4 hours

Package include:
1x USB cable
1x earphone
1x charger
1x remote control
1x Operating Instructions CD

Size : 220 × 310 × 120 mm
Weight : 264g (Cap & Accessory )