Open Box - M12 12-Volt Lithium-Ion XC Extended Capacity 4.0 Ah Battery Pack (2-Pack) Headsets and performance

and performance

Low power consumption - rechargeable battery lasts up to 3 weeks on a single charge

Hex Grip innovative micro texture for maximum comfort and secure grip

you can optimize audio settings

Open Box - M12 12-Volt Lithium-Ion XC Extended Capacity 4.0 Ah Battery Pack (2-Pack) Headsets and performanceCompatible with all Milwaukee M12 cordless tools and instruments, the M12 REDLITHIUM XC extended capacity battery delivers 4 Ah (48 Watt hour) of run time even in sub zero temperatures. Each 12 Volt lithium ion battery is laden with new age REDLINK circuitry engineered to prevent overloads and protect against cell damaging discharge. Revolutionary cell monitoring and temperature regulation prolong this battery's operation and life expectancy, meaning