For sale due to accidental purchase. Original price: ¥15999 The following is from the HP: Bone Conduction Earphones Bluetooth Ear-Open Design Erssimo bone conduction earphones do not block the ears, allowing you to listen to music while hearing surrounding sounds and conversations. They are comfortable to wear for long periods. Bone Conduction vs. Regular Earphones "Bone conduction," as the name suggests, transmits vibrations directly to the inner ear through the "bones," delivering sound to the brain. It protects the ears without damaging the eardrum. Since it doesn't block the ears, you can hear ambient sounds even while playing music, preventing hearing loss. Regular earphones transmit sound vibrations from the ear to the eardrum, which the brain then recognizes as sound. Wearing them for extended periods can cause earaches and headaches. Main Specifications Communication method: Bluetooth V5.0 Supported codecs: AAC Weight: 29g Type: Neckband Charging port: USB Type-C Charging time: 1-2 hours Waterproof performance: IPX55 Microphone: Yes Point ①: Awareness of surroundings You can listen to music while still hearing outside sounds, allowing you to be aware of traffic conditions while exercising. Point ②: Slim and lightweight, yet with a long-lasting battery Erssimo bone conduction earphones support 8 hours of continuous playback, so you don't have to worry about the music stopping during sports, jogging, or running. Point ③: Stability & Fit The fit is like a feather. The neckband is also very soft, gently fitting your head. Because it fits securely, it won't slip even during vigorous exercise like running or training. Point ④: Waterproof and dustproof rating: "IP55" standard Durable against rain and sweat during outdoor activities and running. Moreover, it has a smooth, silicone-like texture, so it won't feel sticky from sweat. It's also resistant to dust and dirt, making it suitable for outdoor scenes and cycling. Point ⑤: Multifunction button You can easily control "music play/pause, skip forward, skip backward, volume up, volume down, answer/hang up/end phone calls" with one hand. That's why Erssimo bone conduction earphones bluetooth are: Perfect for sports and outdoor scenes, allowing you to fully immerse yourself in the world of sound while still taking in outside sounds!