Police Security Ear Hook Style Mini DVR Camera and Cap Clip With ... Cap clip type selectable* Great for military, police, security, law enforcement, sport etc using Model ... 4800mAh/3.7v optional, support 12 hours recordingApplicationsFor police, military, security, law enforcement, sport etc usingFull ... size: 270x205x75mm, Weight: 0.8KG Police Security Ear Hook Style Mini DVR Camera and Cap Clip