Want an amazing Bluetooth for a bicycle? This is a must-have!
It has a Built-in 40mm Neodymium stereo amplifier which gives you an experience in talking on a phone and surprising fullness. It has an excellent sound that gives S1 gorgeous timbre way above average.
It is a mounting S1 on your bike's handle-bar and keeping Bluetooth connected. The music playback and hands-free phone call are all along the way with you.
A better companion on your bicycle!