EJEAS V6 Pro Motorcycle Helmet Bluetooth Intercom Colour Black Ear Placement Over Ear Form Factor Over Ear Noise Control Active Noise Cancellation Headphones Jack 3.5 mm Jack Long Communication Range: The largest distance between two Motorcycle Bluetooth Headset is up to 800 meter in open terrain Excellent Noise Control: Wind noise DSP cancellation guarantees crystal clear voice, reduce background noise from both incoming and outgoing audio. Long Battery Life : Up to 7hours talking time and 300