Hong Kong Regulations

TUNG CHUNG CABLE CAR BYLAW - SECT 32

Using radios, cassettes, etc.

A person may only use or attempt to use any radio, cassette, compact disc
player, record player, portable wireless television or any other similar
device which generates sound on the Cable Car System or in the Cable Car
System area with an earphone or headset or with the authorization of an
authorized official.