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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
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Description
GFB Whistling Trumpet (suits all valves)The 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 however, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50 50 venting.
The 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 however, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50/50 venting.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Not to good
Size: 2 Pack Pocket Size
It doesn’t work well. It didn’t for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
★★★★★ 5
Olabs dry mouth spray
Size: 2 Pack Pocket Size
I have very dry mouth. These sprays are compact and can carry in your purse or pocket easily. Very effective
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Very handy and does the trick
Size: 2 Pack Pocket Size
These are pocket size and just a few squirts and your mouth is moist and refreshed. Not too heavy on the mint flavoring which is a good thing
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Get the biggest ones
Size: 2 Pack Pocket Size
It saves my dry mouth. My medications cause dry mouth. I keep one in my purse at all times.
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Reviewed in the United States on May 17, 2026
★★★★★ 1
Not worth it for 1/2 oz total liquid and no spray.
Size: 2 Pack Pocket Size
This is a teeny-tiny bottle and it came with no sprayer! Just a screw off lid! Now I have to drive to Kohl's to return it. What a rip-off. There are only two, just 1/4 ounce each. Total deception. Can you tell I'm upset!???
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Reviewed in the United States on April 22, 2026