[4K Pro Ultra HD Camera] The TR90 Flexible Material is Very Comfortable to Wear and is Widely Used for Cycling,Hunting,Fishing,Traveling and Daily Living. Its Impressive 5K Resolution Camera and Crisp Photo Make It Ideal for Fast Action Shots.

[Camera Working During Charging] While Using a Power Bank to Recharge while Operating a Camera, the Battery has a Working Life of Approximately 31 Minutes on a Single Charge.

[Impact-Resistant Lenses and Frame] It Features 100% UV400 Protection, a Polarized Lens with a Drop-bell Lens for all Kinds of Outdoor Sports, and US Safety Lens Standard ANSI/ISEA Z87.1-2016 Impact Resistance for Eye and Face Protection.

[Built in Memory] Its 128GB Built-in Memory Can Store about 7 Hours’ Worth of Camera Data. With the Included USB Cable, You Can Play the Content on a Computer or TV, but You Can't Replace the Memory for Water Resistance.

[One-Button Touch Operation] Touch of a Single Button Just Turn on, Turn off, and Take a Picture. When the Camera Starts, Takes Pictures, and Stops, the Sunglasses Have a Vibration Alert and an LED Light.