Read the following paragraph after listening to the audio record: Mobike has become the latest company to release its dockless bikes on the streets of London. The Beijing-based bike-hiring company rolled out the first of 750 bikes in the West London Borough of Ealing on Tuesday, joining four other new arrivals taking on existing schemes. The company’s silver and orange bikes can be picked up and parked without the use of a dock. Riders unlock a bike by scanning a QR code with the Mobike app, which is available on Android and also available from the Apple Store. New users have to pay a promotional deposit of 29 pounds ($38.50), and rides cost 50 pence for 30 minutes .