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The iHEAR 312 Battery Pack contains 6 batteries for powering the iHEARmax, Eva, or TReO for up to 2 months. Each battery lasts up to 12 days depending on daily use. Turning the device OFF when not in use is important to prolong battery life.
One iHEAR Battery Pack (2-month supply) included with your device purchase.
For use with the iHEARmax, Eva, and TReO devices.