Note：The way this smart glasses plays is to amplify external sounds, not earphones
Declared value: US $10 / piece.
1 piece watch is 10$.
2 pieces watch is 20$
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K1 Smart Wireless Bluetooth Headset Glasses 90mAh USB Car Sports Headset Anti-Blu-ray Earphones 5.0 Bluetooth Glasses Headphones
1、Anti-Blu-ray glasses: It can effectively isolate ultraviolet rays and radiation and can filter blue light, which is suitable for use when watching a computer or TV mobile phone. Reduce eye strain and give you clear vision to protect your eyes.2、Sound directional transmission technology: The unique cavity frequency division technology can accurately project the sound to a specific area. Whether it is listening to music or making a call, only you can hear it, and almost everyone around you can't hear it. At the same time, you can also get the sound of the outside world, so that your safety is more secure.3、Ultra-light Frame Material: It has a memory polymer material. The more it fits, the more it fits the user's head curve, and the comfortable clamping force can effectively reduce the head pressure. The glasses are equipped with a rigorous internal wiring process and a high-precision in-mold molding process to ensure high quality.4、Amplifier Bluetooth Chip: Support Bluetooth 5.0 protocol, four times the transmission distance of Bluetooth 4.2, double the transmission speed; support Apt-X HD high quality audio; THD-N super distortion technology; 168 hours long standby.5、With built-in 90mAh Polymer Battery, it offers up to 4 hours of continuous music and 3 hours of talking time, ensure you long lasting using time. easy control answering / ending calls, playing / pausing, previous / next songs.Blu-ray-resistant glasses are glasses that prevent blue light from irritating the eyes. Special anti-Blu-ray glasses can effectively separate UV and radiation and filter blue light, suitable for use when watching a computer or TV mobile phone.specification:BT: BT5.0WiFi: Not supportedNFC: Not supportedColour: BlackWaterproof rating: IP64Appearance material: frame, mirror arm: polymer TR90PA material: leg: TPULens material: three-layer coated anti-blue lens, high hardness scratch-resistantBattery type: lithium polymerCapacity: 90mAhCharging Method: USBCharging time: about 1HLife time: Standby for about 7 days, continue to play music about 4H, continue to talk about 5HMain features: Bluetooth call, Bluetooth music, anti-blue lightProduct language: Chinese and English languageGlasses size: about 155*146*42mm/6.1*5.75*1.65inWeight: about 25g (without lens), 32g (with lens)Packing box size: about 16*7.5*5.3cm/6.3*2.95*2.09inPackage Weight: Gross Weight: about 235gPacking List:1*Bluetooth Headphone glasses1*USB Cable1*user manualNote:1. Please full charged at the first use. Don't charge in condition of water stains.2.Don't wear this device when bathing or swimming for a long time.3.Use the matching charging cable for charging. Please use 5V 1A adaptor to charge, otherwise it may damage.