Life on the road shouldn't mean sacrificing the connections that matter most. The KING Extend™ boosts your cell signal when bars are low and helps ensure that you're never more than one call away from the people you love.
Boost your existing cell phone signal up to 32x! The KING Extend™ doesn’t require an additional monthly service, works with all U.S. providers, and supports multiple users. Ready for 5G LTE service? So are we! KING’s premium cellular booster is 5G ready and works with your current 4G LTE and 3G networks.