Set of 2 circumaural ear cushions for Plantronics Supra Plus and EncorePro headband style headsets. This cushion completely encloses the ear within the inner space, as shown in photo. The circumnaural cushions are ideal for extremely noisy call center environments where the user wants to block out distractions in their environment. These cushions are compatible with the following Supra Plus and EncorePro models: H251, H251N, H261, H261N, H351, H351N, H361, H361N, HW251, HW251N, HW261, HW261N, HW510, HW510V, HW520, HW520V. Note: Part number 83195-01 (formerly 92499-01).