Introducing the Green Lion Oslo Series Headphone, the gold standard of wireless sound quality and visual beauty, which is offered in black color. This wireless headset, designed for music lovers, has high-definition audio that immerses you in every rhythm and gives each song a clear, resonant tone. With its excellent 17-hour working duration and ergonomic features that ensure a secure fit, this device was designed with user comfort in mind. Its adaptability is increased by the HD microphone built-in, which makes calls crystal clear. The Oslo Series is amazingly portable despite its powerful features, guaranteeing you the highest level of comfort wherever you go. Experience the Green Lion Oslo Series to hear the music of the future.