In pictures: Nigeria's repairmen

Napoleon is the boss of these repairmen.

He rents part of the shop behind them where reconditioned sound systems are sold. Each of his workers makes around 3,000 naira ($25) a day.

“I have been in this business five years. I served under a master, now he set me free and I set up for myself,” he says.

“Give me anything dead, I will rewind it.”