Sennheiser NT1-1-EU is a power supply to suit a variety of Sennheiser wireless accessories.
NT1-1-EU includes the standard 240v plug adapter to suit Australian power.
Use NT1-1-EU to power antenna splitter ASA1 (the newer ASA214 now includes NT1-1-EU as standard).
For efficient use of your time and environmental resources, use BA2015 rechargeable battery packs in all your Sennheiser wireless, charge them in L2015 charging bay – requires NT1-1-EU to operate.