TOKYO - Japanese companies have stepped up efforts to assist people with hearing difficulties amid growing concern that the problem affects younger generations as well, coming up with ideas ranging from comfortable and stylish earphones to a hearing test vehicle and communication boards at convenience stores.

Major digital watch and electronic equipment maker Casio Computer Co. released the "earU," a wireless ear-cuff hearing-assistance device, in May for people who have trouble hearing conversations but do not require hearing aids.

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