🔊 Hear the difference with PowerOne! Triple-sealed for maximum safety and performance. Color-coded for quick and easy identification. Experience extended battery life for optimal hearing. Innovative delivery wheel for hassle-free battery access. Go green with 100% mercury-free technology. 100% mercury-free Long-lasting power Secure packaging FCS Mercury-Free Zinc Air Wireless Approved Power One Hearing Aid Batteries Size 675 offer high-quality, long-lasting power for hearing aids. With a unique delivery system, eco-friendly materials, and secure packaging, these batteries ensure optimal performance and user convenience.