Link 20 Bluetooth Earmuff Hoods Diameter (D) 2 1/4" Shank

Diameter (D) 2 1/4" Shank (d) 7/16" Hex Overall Length (L) 6 1/4" Technology HSS Material Soft Wood

Ability To Add Multiple Extensions

Plate opening is 3-1/2"

Melamine Extension Table Kit With 2 Support Legs

Link 20 Bluetooth Earmuff Hoods Diameter (D) 2 1/4" ShankEarmuffs. Done Better. Our best selling earmuff got an upgrade. Featuring a padded headband cushion, up to 50 hours of battery life and a *boom microphone for crystal clear calls, LINK 2. 0 is the Bluetooth earmuff you've been waiting for. New boom mic* attachment for clearer calls in loud environments New raised buttons for easy navigation Improved battery life up to 50 hours Improved Bluetooth 5. 0 Vented headband with new comfort foam headband