宇视监控套装四路
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- 产品描述
| 产品尺寸 | 长: 0.00cm | 宽: 0.00cm | 高: 0.00cm | 产品重量 | 0.000kg |
| 包装尺寸 | 长: 10.00cm | 宽: 5.00cm | 高: 3.00cm | 包装重量 | 0.200kg |
Quantity: single left ear
Product Type: Medium Power Analog Ear Back Machine
Temperature: -20° to 60° / Celsius - 4 ° F to 140 ° F
Air humidity: ≤ 85%
Air pressure: 500~1100 kPa
Technical data
Technical data HD-28
Peak OSPL 90 (dB SPL) 118
HAF OSPL 90 (dB SPL) 115
Peak gain (dB) 45
HAF full gain (dB) 35
Total harmonic distortion:
500Hz (%) ≤ 3
800Hz (%) ≤ 3
1600Hz (%) ≤ 3
EQ input noise (dB) ≤ 32
Battery current (mA) ≤ 1.5
Frequency range (Hz) 350-5500
Battery: A13
External receiver RIC analog hearing aid products, streamlined appearance,
Comfortable sound quality is easy to adjust.