How to Borrow Ear Muffs for Kids Pick them up at the Harbour Concert Reception tent near the venue entrance. Collection Time: 17:00–18:00, before each Harbour Concert Deposit: ¥1,000 cash (exact amount only, no change available) At the reception tent, write your name and mobile phone number. You’ll then receive one pair of child-friendly ear muffs in exchange for your deposit. Returning the Ear Muffs: After the concert, return them to the Reception Tent to get your ¥1,000 cash deposit back.