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Frequently Asked Questions

We're here to help. Got questions? We have answers!

Yes we will ship worldwide from our headquarters in Amsterdam!

You can switch Howler between 2 modes:

a) Recording straight to a swappable microSD-card inside Howler (nowadays an SD is included!).

b) Livestream with your phone (Android, iOS), or other devices, i.e. laptops (macOS, Windows).

Howler in livestream mode functions as an audio interface and SD-card reader. you can use it to record the audio straight to your phone with help of a recording app, i.e. n-Track Studio and you can copy the recording that you made before.

Yes! You can use Howler with your native camera/video app on your phone.

Set Howler to livestream mode and connect to your phone, launch your camera app and make a video. The sound in the video comes from Howler.

Perfectly useable for uploading DJ videos to i.e. Youtube.

No, currently Howler’s tech is unable to livestream and record at the same time. It is possible to chain 2 Howler’s after each other by it’s THRU output, one for recording, and one for live streaming.

Best Quality – Record in WAV mode: 24 bit/48kHz, recording time is ±3.5 hours straight per file, max 4gb file size, after reaching the max file size, Howler will stop automatically  and start recording to 2nd file (3rd and so on) with half a second of cutoff between the 3.5 hour recordings.
Compact file – Record in mp3 mode: 320 kbps, the max recording length depends on the formatting of your SD card. In FAT32 format, the maximum recording length is 25 hours, using exFAT there is no limit!
If you record with Howler to a recording app on your phone: the quality and file size depend on the storage capacity of your phone and the recording app that you use.

The audio is streamed to your phone as 24-bit, 48 kHz audio. The actual streamed audio format depends on the app that you use.

Yes, Howler is compatible with both iOS and Android.


  • Livestream iOS 13 and higher*
  • File transfer iOS 14 and higher*
* Apple lightning USB adapter needed.
  • USB-C compatible Android phones

We have tested Howler with Twitch, Instagram, Facebook, TikTok and YouTube. Note: on some phones it is necessary to install an app such as Lesser AudioSwitch to force Android to use Howler as an audio source.

To livestream with an Android phone, all you need is a USB-C to USB-C cable. To livestream with an iPhone, you will a USB OTG adapter and an USB-C to USB-A cable. We sell the adapter together with the cable in the “Lightning pack”.

If you want to connect your Howler to a USB-C device, such as an Android phone, or a laptop with USB-C, you only need the USB-C to USB-C cable. Most likely you will already have one at home!

If you want to be able to charge your Android phone or iPhone 15 while it is connected to your Howler, you need the USB-C pack which includes an USB OTG adapter and a USB-C cable.

If you want to connect your Howler to your iPhone, you will need the Lightning pack. This includes an adapter and a USB-A to USB-C cable. This adapter also allows you to charge your iPhone while it is connected with your Howler.

Users with an iPhone with Lightning port require a so called USB camera adapter, or our Lightning pack (available in our webshop), in order to connect with Howler. Some iPhones did not connect properly due to a bug in the firmware, we have fixed that in firmware version 1.2! If your Howler is before October 2023, you should update its firmware. Get the update here.

Yes, Howler is also a standards compliant audio interface and SD card reader and compatible with any laptop.

If your Howler is generating only noise as an audio interface (i.e. when recording in Audacity), change the bit depth settings to 16 or 24 bit with 48 kHz. Normally this is done automatically.

For MacBook Air M1 (with macOS Sonema) you may have to do this manually. You can do this inside the Audio Midi Setup app. Switch the input format to 2ch 24-bit integer 48 kHz.

In general, microSD-Cards with UHS speed class I (U1) only work. However, during testing we have found that some microSD cards are not compatible. If you buy a microSD card via us, you are certain that it will work.

We strongly recommend to (re)format your SD-card as FAT32/FAT.

UPDATE!: SanDisk ‘Pro’ and ‘Ultra’ cards do not work with Howler. 

We have tested with cards up to 256 GB but technically there is no reason why larger cards won’t work. Though you have to reformat your SD-card to FAT32 for 64GB and larger cards. Note: Windows will not allow you to format an SD card of larger than 32 GB in FAT32, use an external tool to format. For macOS users, select FAT format (which is FAT32) in the Disk Utility app.

If you are not satisfied with your purchase, you may request a refund within 14 days of receiving your order. To initiate a return, please contact us at and mention your order number to obtain a Return Merchandise Authorization (RMA) number. Products returned without an RMA number will not be accepted.

Please note that customers are responsible for return shipping costs. We recommend using a trackable shipping service and purchasing shipping insurance. We reserve the right to refuse returns that are not in their original condition or do not meet our return policy criteria.

Products must be returned in their original packaging with all accessories included. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item and whether your refund has been approved.

For more info on how to use Howler and SD card requirements check out our manual.

Still have questions?

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