Astral HH FAQ

What is the microSD card slot for? 

The Astral HH offers the ability to record 32-bit float audio files internally via microSD card. This is also used for updating firmware.

Can you record and transmit at the same time? 

No, the Astral HH cannot simultaneously transmit and record audio internally.

How long does a battery last? 

The Astral HH will operate for 10 hours on a single charge with the 18650 Li-Ion battery (operating at 10mW RF output power).

What battery should I use? 

Sound Devices’ XL-B18650 Li-Ion battery is designed specifically for powering the Astral HH. We recommend this model for ideal performance. Other standard 18650 Li-Ion batteries are also compatible.

Is there an Astral HH charging station? 

Coming soon! See the user manual for details on a compatible charger.

Can other manufacturers’ capsules be used with this transmitter? 

Yes, the Astral HH is natively compatible with any Shure- or Sennheiser-threaded mic capsule.