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Smart Rings for Men Women Fitness Ring Heart Rate Monitor Sleep Tracker Fitness Tracker
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Battery Capacity[mAh]: 120
Frame Material: Nylon: Lens Material: Polycarbonate
Channel: double speakers, stereo: Lens technology: anti-blue light, blue-coated film, anti-UV400 ultraviolet rays, transparent lens discoloration when exposed to sunlight
Effective distance: ≥15m: Horn diameter: 10mm
Speaker power: 50mW*6: Impedance: 16Ω
Microphone sensitivity: -38dB±6dB: Signal-to-noise ratio: ≥101DB
Distortion: ≤5%: Frequency response: 20Hz-20KHz