Mini Digital Invisible Hearing Aid in the Ear Sound Voice Amplifier+Earplug UK
4 x Units of earplug of different size. 1 x Hearing Aids. Smart Electronics. Super mini size and light weight, not easily to be seen. Input noise: ≤40dB. Max sound output: 110±5dB. Sound gain: ≥30dB. 1 x Instruction Manual.