1. Effectively shield all communication signals such as CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom Dalingtong), DCS (1800MHz), PCS (1900MHz), PHS (Telecom Xiaolingtong), 3G mobile phone signal and 4G mobile phone signal.
2. Thicken the shell and heat dissipation by double fans.
3. Transmitting power 12W
4. The effective shielding distance is 1-25 meters adjustable (debugging before leaving the factory)
