Feature: -Integrate design for perfect function -Dual-head Dual-barreled ,superior Acoustics -high quality,responsible for every one. -Suitable for doctor , nurse , student , and home health care essential -postable and beautiful design -Solid zinic alloy plated single head， less attenuation -100-500Hz, attenuation less than 12dB -500- 1000Hz , attenuation less than 20dB -Soft-sealing comfortable eartips design: Dual-Tube- non toxic ,non latex, soft and elastic ear hook : stainless steel tube,good conduction ear lips : soft and comfortable, anti-cold , anti-ageing Head : solid zinic alloy , precision PVC diaphragm , no cold feel ,hear clearly Size: totally length:74cm tube length: 54 cm head diameter : 4.5 cm weight : about 230g package weight.
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