Vintage Soviet Antique Hearing Aid BK-1 Crystal M Work USSR 1964

Description

An excellent collection item. Vintage Soviet electronic hearing aid BK-1 (Crystal M) produced by the M plant of hearing aids, 60s. Supplied complete with packing box, earphone, connecting wire, earplugs 3pcs. The battery is not for sale. Body material - aluminum plated brass.
The device has been tested. Working. Enhances, but there is noise. I cannot judge the quality of the device from a practical point of view for use by hearing impaired people.
Dimensions 80x 59x 19 mm (3.5 x 2.3 x 0.8 inches)
. Weight 120 grams (0.26 lb). Max gain-55 dB.
Condition in the photo.
The packing box is frayed.
There are traces of corrosion in the battery compartment from a leaked battery. Scratches.
Look carefully. Photo part of the des
cription.
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Worldwide shipping.
Item ships within 1 business day after the receipt of the payment.
The item will be shipped by registered airmail by Ukrainian Postal Service.
Shipping takes 12-20 business days to
Europe,
USA, Canada, Australia and Japan.
Due to the armed conflict on the territory of Ukraine, the delivery time may increase.