מכשיר שמיעה בלתי נראה אלחוטי לקשישים

Specification:
Material: plastic
Color: skin tone,
Quantity: 1 pair
Maximum sound output: 115 +/- 3dB
Sound gain: ≥28dB +/- 5dB
Total harmonic distortion: ≤ 3%
Frequency range: 300-3500MHz
Input noise: 32dB
Voltage: DC1.5V
Current: ≤2mA
Hearing aid (each): Built-in 25mAh rechargeable battery for charging
Time: ≤6 hours
Working time: ≤16 hours
Packing size: 170 * 90 * 50mm / 6.69 * 3.54 * 1.97 inches
Package weight: 210g / 7.41oz

Note:
1. The charging box has no built-in battery and is powered by most USB devices.
2. Due to the different display and light effects, the actual color of the product may be slightly different from the image color, thank you for your understanding

. Type1-Packing list:
1 pair of headphones
1 *Charging box
6 * 6 * earplugs
1 * small brush
1 *Charging cable