4 Bands 4W black 30dBm portable phone signal Blocker , Handheld Signale Jammer for GSM , DCS , CDMA , WCDMA

Product Fetures:

1. Compact size - easily put in the bag or purse
2. Built in rechargeable li-ion battery
3. Can be charged by AC adapter or car charger
4. Frequency selectable of GSM, DCS, CDMA, WCDMA, Wifi, GPS, etc.
5. No harm to human body or other electronic devices

Product Specification:

1. Jamming Frequency Ranges:4 working Bands Selectable of GSM, DCS, CDMA, WCDMA, Wifi, GPS, etc.
2. RF output power: up to 2W
3. Jamming Radius: 2 to 15 meters depending on the environment signal strength
4. Antennas: 4pcs small omni antennas
5. Power Supply : 110-220VAC, Car adapter, or Built-in rechargeable Lithium-Ion (LI-ION) battery
6. Internal Battery: 2000mAh rechargeable Lithium-Ion (LI-ION)
7. Battery Working Hours: 2-3 hours
8. Dimensions: 110*62*30mm
9. Net Weight: 0.4kgs

Product Image:

Tag: Handheld Signale Jammer

FAQ:

Why is there still a signal on the phone's signal indicator when it works?
A: It's just an illusion.In fact, the mobile phone has been unable to communicate.When you press the pull button, you will find that there is no signal on the signal indicator.The cell phone signal shield will not interfere with the normal work of other electronic devices. The antenna should be installed on the corresponding signs of each channel on the host, and then connected to the host power supply.

Are cell phone signal Jammer harmful to people and mobile phones?
A: Please rest assured that the electromagnetic signal intensity emitted by the cell phone signal Jammer is very weak. The test data indicates that this signal strength is far from harmful to the human body.At the same time, the mobile phone signal shield is just blocking the forward signal of the phone, so that the cell phone cannot be connected with the base station, so there will be no damage to the phone itself.

Is the cellular signal shield the same for GSM mobile phones and CDMA mobile phones?
A: that's a good question.Because CDMA mobile phone's anti-interference performance is far superior to that of GSM mobile phone, the effective shielding distance for CDMA mobile phone is smaller than that of GSM mobile phone, but the difference is not very large, about 2-4 meters.But it also reminds users to pay attention to some particularly important sites, and should increase the number of mobile phone signal blockers when necessary to ensure the shielding effect of CDMA mobile phones.

After working for a period of time, the mobile phone signal mask is hot. Will working long hours damage the machine?
A: thank you for your care. This is a normal phenomenon.In the design, we use the thermal conductivity of aluminum alloy to assist the heat dissipation.This can guarantee long time stable work.As a result, the machine will not damage the machine.