Impulse PROImpulse PRO 2 - Wireless Neckband In-Ear Headphones with Active Noise Cancelling (ANC) IDLN-NKB02-OOANC-OPNItem 6011Impulse PROImpulse PRO 1- Wireless Neckband In-Ear Headphones with Active Noise Cancelling (ANC) IDLN-NKB01-OOANC-OPNItem 6003