Waka Duo 30000 Puffs Dominating the high-puff market, the Waka Duo 30000 Puffs by RELX offers a massive 30,000-puff lifespan and a revolutionary Boost Mode for 2x flavor intensity. Featuring a smart digital display, an 850mAh rechargeable battery, and premium 5% nicotine salt, it’s the ultimate choice for reliable, high-performance vaping.