https://www.ebay.com/sch/i.html?_nkw=3M+Blue+Headset+6+30+X+9+20&_sacat=0&_dmd=2

3M Blue Headset, 6.30 X 9.20

Regular price
$763.00
Sale price
$561.00

Headset, Noise Reduction Rating NRR 25dB, Blue, Includes (2) Lithium-Ion Rechargeable Battery Pack, Wall-Adaptor Charger, Replacement Hygiene Kit, Small Roll, Boom Mic Wrap. For occupational use only