Motorcycle Intercom Bluetooth V5.3, 60 Hours Continuous Use, IP65 Waterproof, Motorcycle Helmet Noise Reduction Technology, 40mm High-Performance Stereo Speakers, Technical Standards Compliance Certification, Japanese Voice Guidance Intercom function for comfortable group rides. Supports multi-intercom, allowing simultaneous connection of up to 10 people. You can talk with friends and share music even while riding, significantly enhancing coordination and enjoyment on group tours. Reliable communication quality and ease of operation. Dedicated noise reduction function ensures clear voice transmission even at high speeds. Large control buttons allow for reliable operation even while wearing gloves.