Designed as a compact, all inclusive stereophone unit, the QZ50 features a behind-the-head headband design for maximum comfort and wearer flexibility during long listening periods. Closed ear cushions provide additional isolation from ambient sound and retain the bass frequencies for an enjoyable listening experience. The QZ50 features iron boron magnet structures and oxygen free copper voice coils for a frequency response of 30-20,000 Hz and clean, clear sound reproduction. Using one "AAA" battery, the QZ50 delivers approximately 50 hours of battery life แบตมีไว้เพื่อเลี้ยงวงจรป้องกันเสียงรบกวนภายนอกครับแต่ปิดได้
Designed as a compact, all inclusive stereophone unit, the QZ50 features a behind-the-head headband design for maximum comfort and wearer flexibility during long listening periods. Closed ear cushions provide additional isolation from ambient sound and retain the bass frequencies for an enjoyable listening experience. The QZ50 features iron boron magnet structures and oxygen free copper voice coils for a frequency response of 30-20,000 Hz and clean, clear sound reproduction. Using one "AAA" battery, the QZ50 delivers approximately 50 hours of battery life แบตมีไว้เพื่อเลี้ยงวงจรป้องกันเสียงรบกวนภายนอกครับแต่ปิดได้