10 Pcs Cell Phone Signal Enhancement Antenna Booster Safeguard

Descriptions: 1. The principle is that the sticker (chip) can increase the wavelength of the mobile phone. 2. The reception range of the signal is enhanced by extending the wavelength of the signal received by the built-in antenna of the mobile phone. Specifications: Product Name: Circuit board mobile phone signal booster telephone antenna amplifier Applicable objects: mobile phones/tablets/walkie-talkies/cordless phones Installation method: Directly attached to the mobile phone Packing list: 10pcs* Phone Signal Booster Stickers

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