maybe you know the bluetooth 3.0 vs 4.0 compatibility

When driving to a strange city and worrying about getting lost and not knowing the specific location, we are used to using the car's own GPS navigation system, which can help us navigate and reach our destination.But what you don't know is that GPS is also a dangerous device that exposes our location. Anyone can easily find your location using a small GPS tracker.A GPS jammer will help.A gps jammer is a good signal blocker. Turning it on will cut off all communication between the GPS device and the satellite, making the GPS signal ineffective.

A high-quality mobile phone jammer can help you get rid of noisy mobile phones and bring you quietness and comfort.Our site is a professional jammer store.We have many years of experience in the production and sales of various jammers, including mobile phone jammer, scrambler GPS,WiFi jammer, drone jammer, GSM jammer, UHF VHF jammer,wireless signal interference transmitter, high power jammer, 3G jammer, 4G jammer, etc.Our jammers are guaranteed high quality and reasonable price, and are praised by customers from all over the world.

In addition to knowing the interference band, you need to determine the required jamming range and application purpose.For some small areas such as classrooms, you can use some Bluetooth 3.0 VS 4.0 Compatibility with medium interference range; for some large areas, such as theater centers with tens of thousands of seats, you need to purchase large-volume interference large-capacity telephone signal jammers.For employees who want to carry signal jamming equipment at all times,buy a low-power portable jammer.There are many types of jammers for mobile phones sold here, which will definitely meet your needs.