The BA 70 Rechargeable Battery Pack from Sennheiser is a rechargeable lithium-ion power solution for the EW-D SK bodypack and EW-D SKM-S handheld transmitters, as well as the EW-DP EK portable receiver.
It can be used in place of the two AA size batteries to provide up to 12 hours of operation. The L70 USB dual-charging station (available separately) is required for BA 70 batteries.
UPC: 615104343290