The BA 20 Recharging Battery Pack from Sennheiser is for the AVX EKP digital wireless system. It is compatible with the AVX-ME 2, the AVX-MK 2, the AVX-835 and the AVX-MMD 42-1 systems.
- For Sennheiser Wireless AVX Systems
- 3.6V Output Voltage
- Uses a standard USB Power Supply/Charger
- Charges via USB Port on Computer
- Fully Charges Under 2 Hours