... communications products, such as GSM, CDMA, 3G mobile phones, cordless phones development, Bluetooth products Product Name: M4070 High Isolation Manual Shield BoxApplication ... mobile phones, cordless phones development, Bluetooth products and maintenance. Specification: M4070specificationsFrequency(GHz)0.8~6GHZisolation≥80 Db @1.575-2.4GHz≥75 Db @5 ...