Acitve Noise CancellingWireless RFD-890W 發佈於 2019-07-152020-07-24 alteam RFD-890W Pause Play Play Prev | Next 2.4GHz Connection Active noise Cancellation 40mm Neodymium driver units Fold Flat Structure Long Lasting Battery Full Specifications and Features GENERAL FEATURES DRIVER UNITS 40mm dynamic-Dome type(CCAW Voice Coil) MAGNET Neodymium DIAPHRAGM PC FREQUENCY RESPONSE (HZ) ISM band 2.4 ~ 2.4835GHz SENSITIVITY (dB/mW) 100 dB/mW CORD TYPE Single-Sided detachable CORD LENGTH 1.2m IMPEDANCE (Ω) 32Ω PLUG 3.5mm USAGE TIME Max. 12 hours (NC ON) WORKING DISTANCE 15m POWER SUPPLY 700mA Li-Ion Battery WEARING STYLE Headband over-ear WHAT'S IN THE BOX User Manual USB charging cable 3.5mm audio cable 2.4GHz Transmitter SIZE&WEIGHT 1 Uniit 6 X 10 X 16cm 230g Features Freedom to raom 2.4GHz wireless connection through out your home without disturbing others Featuring Superior Active noise cancelling function, effectively reduce ambient noise by 85% 40 mm neodymium drivers equipt with professional diaphram for Crisp highs, clear midrange and deep bass response Long lasting, rechargeable battery life for you to enjoy non-stop music anytime, anywhere Fold-flat structure for easy storage purpose Your Name (required) Your Email (required) Subject (required) Message (required) Headquarter 1F., NO. 178, Jingye 3rd Rd., Zhongshan District, Taipei City 104, Taiwan TEL:+886-2-2532-7977#305 #306 FAX:+886-2-2532-7913 Manufacturing Site No. 8, Industrial 4th Rd., Xi Nan Industry Zone, Xian Cun, Zengcheng, Guangzhou, China TEL:+86-20-8293-6877 FAX:+86-20-8293-1377