product features: • IPX4 waterproof / sweatproof function. • Ergonomic design, fits comfortably and does not drop. • Stylish portable charging compartment can charge the headset • True binaural wireless, you can also choose mono or binaural mode to use. • Automatic pairing mode when you remove the headset, no need to press the button • Can answer with both ears during a call • Standby time 150 hours