German medical headphones Medical headphones Riester Stethoscope Duplex R4011 - Black

German medical headphones Medical headphones Riester Stethoscope Duplex (R4011) - Black

Genuine There is a quality guarantee.
Riester brand from Germany. (R4011)

Objective
is a heartphones. Including the sounds caused by
the operation of the internal organs, such as lungs.
General characteristics
1. Double Chest-Piece made of chromium plated brass on both sides.
2. Diaphragm with membrane ø 48 mm. Rims (Non-Chill Rims) thin and soft for membrane to touch the breasts completely.
4. Soft headphones (Soft, Exchangeable Ear-Tips) provides tightening the ear canal.
5. The cable is made of PVC, non-latex. There are 3 colors, black (4011-01), gray (4011-02), blue (4011-03)
6. Total length 77 cm.

Technical properties
1. Diaphragm size ø 48 mm for listening to 100 HZ -1500 HZ

(the maximum listening ability is 21.7 db at 300 HZ).
2. Bell size ø 36 mm for Listen to the low frequency of 20 Hz -100 HZ
(the maximum listening ability is 3.6 DB at 100 Hz)

Assembly equipment
1. 1 pair of Ear-Tips spare parts.
2. MMBRANE ø 48 mm spare parts.

Specific conditions
1. Is a Rudolf Riester GMBH product, Germany.
2. Received ISO 9001, ISO 13485
3. 1 year quality guarantee from normal use.

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