Feature:1. Universal to Humans and Animals: Not only humans, but also pet owners can use our red flashlight to their pets. It can effectively alleviate joint pain, reduce inflammation, both at home and outdoors.2. Portable and Convenient: The red LED flashlight has a compact and lightweight design that can be carried in a small pocket. Just press the tail switch and enjoy effective red flashlight anytime and anywhere.3. Powerful Light: Our 660nm red flashlight penetrates deeper through 660nm of red infrared light, making it easily absorbed by the skin, promoting blood circulation, and accelerating cell repair.4. Naturally Relieving Pain: Our led red flashlight is safe and painless, without any side effects. It can help reduce body pain and is very beneficial for muscles and tissues.5. Warm Tip: It is recommended that the single use time for the same area be 1015 minutes, and the use time can be relatively extended with the extension of the use distance.6. Excellent Aluminum Alloy Material: The shell of this 660nm red flashlight is made of aluminum alloy material, which is sturdy and durable.Specification:Item Type: 660nm Red FlashlightProduct Material: Aluminum AlloyWeight: Approx. 83.00g / 2.93ozLight Source: Infrared LightWavelength: 660nmControl: Tail SwitchPower Supply: 1 x 18650 Lithium Battery (not included)Size: Approx. 120 x 25mm / 4.72 x 0.98inPackage List:1 x Hanging Rope1 x Flashlight