Case for mobile, waterproof

Waterproof cover for small devices such as telephone, loudspeaker or microphone,
for demonstrating sound propagation in liquids and the Doppler effect;

Cover made of very transparent and highly flexible plastic, air-filled edges as additional impact protection,
bag can be easily, quickly and safely opened and closed by two levers, detachable lanyard

Available inner space: 70x150 mm
Dimensions: approx. 220x115x15 mm
Mass: approx. 51 g