60 size 132 hearing aid batteries are included to help you provide consistent power to your hearing device. Your hearing is important; never run out of battery with this multi-pack. RAYOVAC size 312 batteries are formulated to provide quality performance over the life of the battery and deliver more power. It is ideal for high-use devices and features like streaming video, audio, and phone calls. Be equipped! Take along the Wholesalehome caddy, which holds 2 batteries to ensure constant power to your hearing aids. Convenient packaging features a reclosable back door and a dial to turn and remove one battery at a time. The batteries won't leak, swell, or damage devices. Hearing aid batteries 312 have a 4-year shelf life and will hold power for up to 4 years in storage. The cells in each mercury-free size 312 battery, with a balanced formula, provide consistent, high-quality performance for your hearing aid devices. Use these batteries to power your listening devices and hearing aids for hearing assistance you can depend on! Purchase yours today! You have nothing to lose and so much to gain!