Item Type: Bluetooth Glasses Frame Material: Grilamid TR Model: KX07B Bluetooth: 5.0 Channel: Dual speakers, stereo Battery Capacity: Left temple 40mAh lithium battery, right temple 40mAh lithium battery (included) Charging Time: 10 minutes Charging Voltage and Current: DC5V, supports fast charging, maximum current is 180mA Usage Time: 3 hours Frame Color: Black Lens Type: Anti-blue light flat lens Control Method: Touch 1. Long Working Time and Fast Charging: Built-in high-capacity 40mAh battery in both left and right temples. Charge for just 10 minutes and enjoy approximately 3 hours of use. 2. Anti-Blue Light Lens: These smart glasses protect your eyes from harmful blue light. Suitable for daily use, they support the replacement of prescription lenses, etc. They are also waterproof and dustproof. 3. HiFi Stereo: Featuring dual speakers and stereo sound, the noise-canceling microphone ensures clear phone audio. Enjoy your music with an open-ear headset while remaining aware of your surroundings. 4. Bluetooth 5.0: Equipped with Bluetooth 5.0 and an independent decoding chip, offering CD-level decoding and supporting 16-bit, 24-bit sampling rates up to 48kHz, minimizing audio quality loss. 5. Wide Use: Perfect for cycling, running, driving, boxing, fishing, basketball, shopping, and other outdoor activities. They restore visual colors to the greatest extent possible and provide 100% UV protection. Package includes: 1 x Bluetooth Glasses, 1 x Charging Cable, 1 x Glasses Cloth, 1 x High-Quality Glasses Storage Bag, 1 x Manual. Supports replacement of prescription lenses, anti-blue light lenses, sunglasses, and reading glasses. Lenses can be easily replaced by opticians.