20% off on Whistle FIT + a free leash

20% off on Whistle FIT + a free leash *

Smart Collars

Get the full story of your pet’s health.
Which Whistle is right for you?

WHISTLE FIT

Health

WHISTLE GO EXPLORE

Health & GPS

WHISTLE SWITCH

Health & GPS+

Compare all

Accessories

Your dog can't talk. But their health data can.

Collars

Because smart devices can look smart too

Leashes

Because smart devices can look smart too.

Batteries

Because you don't want to miss a minute

Parts

Because things happen. Especially with pets.

Large Hook-and-Loop Attachment - Whistle
Large Hook-and-Loop Attachment
  • Load image into Gallery viewer, Large Hook-and-Loop Attachment - Whistle
  • Load image into Gallery viewer, Large Hook-and-Loop Attachment
  • Load image into Gallery viewer, Large Hook-and-Loop Attachment - Whistle
  • Load image into Gallery viewer, Large Hook-and-Loop Attachment
Free return
1-Year warranty
90 Days risk free
Free shipping

WHISTLE

Large Hook-and-Loop Attachment
$4.95
$4.95
Sold out
Large Hook-and-Loop Attachment
$4.95
Buy now Buy now
1 large hook-and-loop attachment for
Whistle GO & Whistle GO Explore
Accessorize your smart collar
WHISTLE SWITCH
Whistle Switch Collar
XS/S
  • XS/S
  • S/M
  • M/L
    • $29.99
    WHISTLE SWITCH
    Whistle Switch Battery
    $49.99

    *Offer good thru 2/2. Excludes taxes and shipping.

    Questions?

    We’re here 10am - 6:30pm EST every day

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    1-year
    warranty
    Free
    shipping
    Free
    returns
    90 days
    risk free
    How To Measure:
    1

    Grab a string, shoelace, or paper strip to measure the base of your dog’s neck.

    2

    Measure the circumference, leaving room to fit two fingers (about 1.25-1.5’’).

    3

    Select your size using the guide below. Between sizes? We suggest sizing up.

    Need Help? Give us a call: 1-855-999-0471

    Size Guide
    XS/S

    NECK SIZE: 8"- 11"

    FOR DOGS: 5-25 lbs

    BREEDS LIKE: Russell Terrier, Dachshund

    S/M

    NECK SIZE: 12"- 18"

    FOR DOGS: 10-55 lbs

    BREEDS LIKE: Beagle, Cocker Spaniel

    M/L

    NECK SIZE: 16"- 24"

    FOR DOGS: Up to 75 lbs.

    BREEDS LIKE: Labrador Retriever, German Shepherd

    Need Help? Give us a call: 1-855-999-0471