Pettersson U-series USB Ultrasonic Microphone

u-series USB mic
As low as £204.00 Ex. VAT

Small and portable recording units with excellent sensitivity, low noise, and ultra-low power consumption – all for a modest price.


The Pettersson u-series microphones are your answer to a portable recording unit, offering excellent performance. All components are housed in a slim, durable aluminium enclosure, and have a USB Micro B connector which is designed to plug into your smartphone or tablet. Please click HERE for a compatible Micro-USB to USB-C adaptor.

Key Features:
- Excellent Sensitivity
- Low noise
- Compact
- Low power consumption

u256 & u384 USB Ultrasound Microphones

u256 Microphone:
Weight (g): 25 g
Dimensions (mm): 43 x 35 x 13
Microphone: MEMS
Current consumption (mA): 26
Frequency range (kHz): 1 - 128
Sampling rate: 256kHz/16 bits
Anti-aliasing filter: Yes

u384 Microphone:
Weight (g): 25 g
Dimensions (mm): 43 x 35 x 13
Microphone: MEMS
Current consumption (mA): 26
Frequency range (kHz): 1 - 192
Sampling rate: 384kHz/16 bits
Anti-aliasing filter: Yes

Compatible operating systems: Windows, OS X, Android, iOS, Linux.
Compatible also with a wide range of apps and programs.

Please verify the hardware/software compatibility for the u-384 and that 384 kHz recording is supported. Certain smartphones/tablets – particularly low-end devices – have been found not to support USB audio at 384 kHz.

An extension cable and/or other types of USB jacks may also be used with an adaptor.

We now offer FREE UK SHIPPING for online orders over £30 to the UK mainland (under 30kg), including service & repair items. For information on qualifying requirements for free shipping, please see our delivery page.

We aim for next working day delivery on all UK mainland orders received before 3.00pm. Where products need to be made to order or are not a regular stock item, or during busy times of year, despatch times may be longer.

If your order is urgent please call us on 01451 833 181. There is usually an additional charge for timed delivery.

We will always use a reputable courier company and require a signature on delivery. Smaller items are usually shipped using Royal Mail or DPD, and larger items are sent using TNT or Tuffnells. Palletised deliveries are with Pallex.

We will email you shipping confirmation after your order has been despatched. Where available, you will also receive tracking notification by email or text. If you need to track your parcel urgently then please contact us.

We can deliver to anywhere in the world, but you may need to contact us for a quote.

If your order doesn’t qualify for free shipping then UK mainland delivery starts at £6.67 ex VAT, while Highlands and Islands delivery starts at £12.50. You can calculate shipping costs using the basket.

For full delivery information please click here.

Important Information About Backorders

At Wildcare there are times when items are only available on a backorder basis, either due to high demand or if the item is a special order item. We refer to these as ‘backorder items.

Backorder items are clearly listed on our website as ‘Order To Reserve Stock (Backorder)’. Items that are in stock and ready to be shipped immediately are listed as ‘In Stock’.

When you place an order for a back order item or an order that includes back order items, a member of our team will be in contact within 48 hours of your order to confirm the lead time for delivery. For any queries before then, please call us on: 01451 833 181

Avoiding Disappointment

We cannot guarantee that a backordered item will come back into stock or be delivered for a specific date, however we will always do our best to keep you informed and updated.

If your back order is urgent or required within a specific time frame we suggest to call us on 01451 833 181 so we can keep your requirements in mind throughout the waiting period.


If you receive damaged items or the wrong goods, please let us know straight away so that we can arrange for them to be returned to us and replaced as quickly as possible.

You will need to obtain a Returns Number  - please call us on 01451 833 181 or email

Please return goods, WITH THE RETURNS NUMBER MARKED ON THE PARCEL to: Wildcare, Eastgate House, Moreton Road, Longborough, GL56 0QJ

We may ask for a photograph any damaged items before we agree to replace them.

Please click here to view our full returns policy.