Bluetooth glasses / Blue blocking

* Blue blocking PC lenses: UV 410 nm Blue blocking * Bluetooth version: V5.0 * Battery: 3.7V/50mAh * Power input: 5V, 500mA * Charging time: ≦2H * Music playing time: About 180 Minutes * Standby time: About 100 Hours * Operation Distance: 10 m * Micro USB Charging Cable * Size / Material / Weight: 165x150x48mm / TR90 / 30g * Main functions: Sport, Gaming, Music, playing, calling handling
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