Sennheiser BA 30 Rechargeable Battery Pack

The Sennheiser BA 30 Rechargeable Battery Pack supplies power to the wireless Sennheiser SK D1 or AVX Bodypack Transmitter (sold separately). This battery pack can be used to replace two AA sized batteries that power the transmitter unit. The BA 30 uses a lithium-ion 3.7V rechargeable battery.

Compatible with:

Sennheiser SK D1 
Sennheiser AVX Combo SET
Sennheiser AVX ME2 SET
Sennheiser AVX MKE2 SET
Sennheiser AVX SK AVX
Sennheiser Speechline SL Bodypack DW
Sennheiser AVX Bodypack Transmitter