Primary Features 

• Utilizes a LED
• Made of aluminum alloy
• Maximum output of 130 ANSI lumens
• Max beam distance of 59m
• Patented rechargeable super micro-sized flashlight
• Can be recharged without removing the light's head, you won’t lose the light’s head anytime
• Rechargeable with any USB port device
• Quick charge in 1 hour
• Uses a rechargeable 10180 lithium ion battery
• Small and exquisite
• Reliable twist switch for quick, one-handed operation
• Battery reverse polarity protection
• Instant access to low/high mode;
• Waterproof to IPX-8 Standard (underwater to 2 meters)
• Impact resistant up to 1.5 meters
• Use green environmental materials package box 

Output & Runtime:

Low (8lm, 6h), High (130lm, 0.5h)

Dimension:

Length 46.4mm/1.83in

Head Diameter 14.9mm/0.586in

Weight (Excluding battery) 13.4g /0.47oz

Includes:

1 x X4S Keychain Flashlight

1 x USB Cable

1 x User manual 

1 x Stainless steel key ring

1 x O-ring