- Coloured in-ear headset for telephoning and listening to music on the go ,Happy Plugs In-Ear headphones does what no other headphone does. It combines high performance audio, fashionable colours and a stylish design at the same time. Ears come in all different shapes and sizes, so our silicon eartips come in different sizes too. With eye-catching colour and ear comfort - Happy Plugs In-Ears are made to fit you perfectly. They work with all smartphones with a jack plug on the market and have a built-in mic and remote.