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charge fully before first use and keep the fan clean and dry when not in use

Mini Noise-Canceling Ultra-Thin Long Battery Life Sleep Earphones Color:Blue ')[0x0]==_0x4cbc('‫32'FEATURES ULTRA THIN DESIGN: Mini ultra thin invisible fit ear design, lying sideways can also be worn, suitable for use during sleep. HIGH SOUND QUALITY: Provide clear sound quality, sleep music or white noise effect is better. ACTIVE NOISE REDUCTION FUNCTION: Effectively isolate external noise, creating a quiet sleep environment. BLUETOOTH CONNECTION: Wireless design, avoid cable tangling, more convenient to use. LONG BATTERY: Long battery life to