product features

■ Rapid Key ideal and practical to meet a variety of needs and applications.

■ applied to 3.5mm Stereo Jack hole.

■ no need to unlock， push the button， and instantly open the desired function.

■ provide an additional protective sleeve may be attached to the headphone cord， portable， easy to use.

■ Support Android Android 4.3 version over the phone， or tablet PC designed for rapid application button.

■3.5mm headphone jack dust protection plugs.

■ well-known German brand， strictly controls the quality， performance excellence.