Triena. Case "Heart" with clip.

Triena "Heart" is a good gift for Valentine's Day.

Triena is Hi-Fi Bluetooth headset with built-in audio codec aptX and 3D printed case.
Triena is Bluetooth pendant that will be an excellent and original gift for music lovers, lovers of good music and pure sound.

For more information, see http://www.thingiverse.com/thing:1259938