The KBEAR brand has started selling budget in-ear dynamic headphones KB01 , the main feature of which is the use of a beryllium diaphragm emitter.
Considering the low price, it is unlikely that we are talking about a membrane made of pure beryllium; most likely, the 10-mm diaphragm was made by depositing beryllium onto a polymer substrate. The headphone body is made of synthetic resin and is available in several colors – gold, gray and red.
The sensitivity of the model is 109 dB , the nominal resistance is 32 Ohms . The kit includes a detachable black wire with high purity oxygen-free copper conductors, equipped with a 3.5 mm mini-jack. Each earphone weighs only 4 grams .
KBEAR KB01 In-Ear Dynamic Headphones sell online starting at $39.99
