Can’t find what you’re looking for? Please call us at 888-345-4858 for assistance.

MDF 777K MD One Dual Head Stethoscope, Noir Noir (Black)

In stock
SKU : 9474
MPN : MDF777K11
  • Two additional sets of ComfortSeal Eartips
  • Spare ultrasensitive diaphragm
  • ID tag
  • Handcrafted chestpiece constructed of acoustically superior stainless steel
  • Gold plated dual-head chestpiece and Ergonomax pre angled headset
  • Ultra-thin fiber diaphragm for high frequency sounds
  • Extra large non-chill bell provides greater acoustical amplification
  • Full-rotation acoustic valve stem with indicator
  • High density latex-free PVC tubing prevents sticking or cracking
  • Longer length of tube allows comfortable space between practitioner and patient
  • Patented internal metal-alloy chamber keeps the tubing open for sound transmission
  • Internal dual-leaf spring headset construction for comfort
  • Includes two sizes of ComfortSeal Silicone Eartips
  • Eartips are phthalate-free and clear for hygienic purposes
  • Accessory Kit Includes
  • Two additional sets of ComfortSeal Eartips
  • Spare ultrasensitive diaphragm
  • ID tag

The 777K by MDF is constructed of premium-grade stainless steel in 22K gold-plating. The 777K provides accurate auscultation of heart, lung and blood pressure sounds as well as overall durability and aesthetics. The stainless steel dual-head chestpiece and acoustic valve stem are specifically designed for the highest performance and durability. The non-chill bell ring provides isolations of low frequency sounds and offers patient comfort.

The MDF777K features premium-grade stainless steel in 22K gold-plating. The 777K includes an accessory kit which contains 2 extra sets of ComfrotSeal Eartips, a spare diaphragm and ID Tag.

MDF Instruments have been handcrafted with pride since 1971. Signature MDF quality is backed by a lifetime warranty that protects against defects in materials and craftsmanship. Also offered with the purchase of an MDF Instrument is the MDF Free Parts for Life Program that offers free replacement parts for the life of the instrument. Replacement parts include silicone non-chill and retaining rings, diaphragm, ID Tag and ComfortSeal eartips.

QuickMedical SKU 9474
Manufacturer MDF Instruments
Return Policy

Every effort is made to accurately pack and ship your order. Should you encounter a problem, please follow the instructions below.

The following items have return restrictions or are not returnable:

Special Order Items

Upholstered Items (ie: stools and tables )

Opened or defaced product

Discontinued product

Disposable product

Used instruments

Expired product

Product returned after 30 days of invoice

Products drop-shipped directly from the manufacturer

Freight Damage – Inspect your shipment

Thoroughly inspecting your order is CRITICAL. We recommend you check your order immediately while the driver is present. If there is damage to the packaging or to the internal contents, please have the delivery driver make appropriate notations before signing for the shipment. Promptly notify our returns department of any freight damage. If damage is concealed, you MUST:

1 - Notify us within 48 hours of receipt.

2 - Report damage in writing to

3 - Include pictures and a description of the damage so that we may file the appropriate paperwork.

4 - Retain all original packaging material and packing information to accommodate for possible freight inspection.

Credit for returned goods

In order to receive credit for in stock items shipping from QuickMedical, product(s) must be returned within 30 days of invoice, must be unopened, and in salable condition.

Customer is responsible for return shipping.

Special order items, upholstered items (i.e.: stools and tables), opened or defaced products, discontinued products, used instruments, expired products, and products returned after 30 days of invoice WILL NOT be returnable.

In case of customer error, credit issued for in stock items will be less a 25% restocking and freight costs.

Return policy for non-stock, special order, and or drop shipped items will be subject to the return goods policy of the manufacturer.

All returns must have a Return Goods Authorization number clearly identified on the shipment. All items returned in any other manner will not be processed.

Please email or dial 888-345-4858 should you have questions about a return or to obtain a Return Goods Authorization number.


All products are new and warranted by the manufacturer. If you need specific product warranty information, call QuickMedical at 888-345-4858.

© 2021 QuickMedical. All Rights Reserved.