Hearing aid with battery HAXE JH-A39

Storage temperature (T-T): -10 - 55 °C
Operating temperature (T-T): 0 - 40 °C
Operating relative humidity (H-H): 10 - 90%
Storage relative humidity (H-H): 30 - 75%
Wearing style: In-ear
Product type: Hearing amplifier
Volume control: Yes (6 levels)
Recommended usage: Indoor / outdoor
Product colour: Black
Silicone earplugs: 3 pairs (S,M,L)
Charging case: Yes
Cables included: USB
Cleaning kit: Yes
Operating voltage: 3,7 V
Operating intensity: 6 mA
Case charging time: 3 h
Charging time for headphones: 2,5 h
Rechargeable battery: Yes
Warnings: The product contains batteries that must be disposed of properly., Avoid contact with water and moisture., Keep out of the reach of children.
Output gain: 35 dB
Headphone output power: 117 dB
Printing noise level: 29 dB
Frequency range: 400 - 4500 Hz