核心提示：數(shù)字常規(guī)對(duì)講機(jī) DH450數(shù)模兼容，效率優(yōu)先高效降噪，清晰洪亮持久續(xù)航，超長(zhǎng)待機(jī)優(yōu)化電路，更遠(yuǎn)通信堅(jiān)固耐用，IP65防護(hù)語(yǔ)音加密，
數(shù)字常規(guī)對(duì)講機(jī) DH450
數(shù)模兼容，效率優(yōu)先高效降噪，清晰洪亮持久續(xù)航，超長(zhǎng)待機(jī)優(yōu)化電路，更遠(yuǎn)通信堅(jiān)固耐用，IP65防護(hù)語(yǔ)音加密，安全可靠實(shí)時(shí)時(shí)間，語(yǔ)音播報(bào)
