F09 Anti Blue Light Photochromic Sunglasses Music Call Smart Wearable Bluetooth Headset Smart Glasses

F09 Anti Blue Light Photochromic Sunglasses Music Call Smart Wearable Bluetooth Headset Smart Glasses. Photochromic Lens: Adapts to light conditions with anti-blue light protection for eye safety. Bluetooth V6.0: Ensures stable wireless connection up to 10 meters with low latency. IP4 Waterproof: Resistant to water splashes and dust for outdoor durability. Touch Control: Intuitive manipulation mode for music and calls without buttons. Wireless Stereo Sound: High-fidelity audio with 100~20000Hz frequency response. Fast Charging: Fully charges in about 2 hours for immediate use. Long Standby Time: Up to 6 months standby time when not in active use. Customizable OEM/ODM: Supports logo printing, case color design, and package customization.