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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Laser Wavelength: 532nm
wet or dry clean and sanitary
scratch-resistant and wash-resistant
Loading Container 20GP: 368 cartons * 500 pcs = 184000 pcs
Standby time: 5S standby during non-working time
A-60 USB Rechargeable Hearing Aids Adjustable Tone Sound Voice Amplifier, A-60 Option:A-60 Laser Wavelength: 532nm1. Sound output (MAX): 129+ 4 dB 2. Sound Gain (MAX): 50dB + 5dB 3. Harmonic distortion: less than or equal to 5% 4. Frequency range: 450~3500hz 5. Input noise: less than or equal to 30 dB 6. Battery: Lithium battery 7. Working voltage: DC 3. 7V 8. Working current: less than or equal to 3mA 9. Dimensions: 6. 6 x 1. 3 x 1. 3cm 10. Net weight: 26g 11. Please do not use the computer to charge. 12. Please do not charge more than 6 hours Specification: