For your wireless microphone systems we recommend the Energizer high capacity (175 mAh) 9 Volt Nickel-Metal Hydride (NiMH) Rechargeable Battery. They hold a charge for up to six months and can be recharged hundreds of times. Suitable for use with any brand of charger designed to charge Nickel-Metal Hydride batteries.
Treat your environment with care by using rechargeables.
High capacity 9 volt NiMH battery.
Lasts longer in wireless mic system than regular alkaline batteries.
Saves you money and is good for the environment too!