Roger Focus is a discreet and highly comfortable behind-the-ear Roger receiver. It features a SlimTube, a volume control, and uses a 312 battery. Roger Focus is an easy-to-use product that sends the teacher’s voice directly into your child’s ears. Enables children with normal hearing and unilateral hearing loss to be more attentive by bringing speech directly to their ears and reducing the effects of distance, background noise, and reverberation.