The Hamilton Buhl SOP-HA7M Sack-O-Phones- 5 Pack of Hamilton HA7M Deluxe MultiMedia Headphones with Microphone. Sack-O-Phones packaging is a unique bag that doubles as a knap sack and holds 5 deluxe or 10 personal headphones. It's a great way to store headphones easily and economically, no need for costly plastic cases for storage.

Sack-O-Phones Includes:

• (5) HA7M Deluxe MultiMedia Headphones with Microphone
• (1) Sack-O-Phone Carry Bag

• Carry Bag
• 18" x 14"
• Draw string, Non-Woven Polypropylene Material

Headphone Specifications:

• Headphone:
  • 40mm Cobalt Magnets
  • Frequency Response: 18-20k Hz
  • Impedance: 170 Ohms
  • Sensitivity: 100dB
  • Max. Input: 100mW
  • Plugs: 1 3.5mm Stereo Jacketed
  • Cord: 6 ft, Chew-Resisstant, Braided Nylon
  • Headband: Adjustable, Vinyl Covered
  • Replaceable Foam Ear Cushions
• Microphone:
  • Electret Condenser, Omnidirectional
  • Plug: 3.5mm Nickel Plated Stereo, Red Jacketed
  • Warranty 1 Year 

Optional Accessories (not included):

• 5076   - Refresh kit includes a replacement reclosable storage bag and two new ear cushions
• HygenX25 - Disposable sanitary ear cushion covers (Box of 50 Pair)

Prevent The Spread of Lice:
Built with kid's health and safety in mind, these headphones are designed to combat the spread of head lice in schools. Each headphone comes in its own heavy-duty, write-on, moisture-resistant, reclosable bag. When sealed in the bag, lice are killed in 24-48 hours, without the use of chemicals.