Comfortable to wear: make you feel comfortable. It does not block your ears, so there is no feeling of pressure.
Light as a Feather: Weighing just 1.1 ounces (31g), it"s light as a feather. The compact, lightweight body and clever design make it so comfortable you won"t even notice it"s there.
Powerful Bass: In order to produce better sound, it is equipped with a “Lamda-type acoustic space” that increases bass sounds, and delivers heavy sound. The pure sound is amazingly lively.
Enjoy the music and hear the surroundings: Lightweight and open-eared so you can clearly hear the sound you want and the surrounding sound. You can enjoy your own soundtrack while comfortably feeling the world around you all day long.
Multipoint Connections: Supporting multipoint connection, RunFree can connect to two main units (transmitter/transmitter) simultaneously. Connects to two smartphones at the same time without the need to switch.