The Keystone FLEX-3 is a high-performance, adjustable power vaping device featuring a robust 1100mAh battery and convenient Type-C fast charging. It offers three power settings—22W, 28W, and 40W—allowing users to customize their vaping experience. The device includes a hidden digital screen that clearly displays battery life and power level, combined with a visible tank design for easy monitoring of e-liquid levels. With its sleek, ergonomic design, the FLEX-3 delivers both comfort and functionality, making it an excellent choice for users seeking long-lasting battery life and intelligent control.
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