Orb of Silence

The Orb of Silence is a clear crystal ball that creates an invisible field in a sphere around it when activated by kissing it. Once active, everybody inside the field cannot hear any noise from outside of the field and vice versa. This effect can be used for stealth as well as completely negating sonic attacks. Additionally, the Orb itself cannot make any sound; tapping on it will yield only silence.
== Variants ==
=== One Way ===
The One Way Orb of Silence allows either those inside the area of effect to still hear the outside, or those outside still hear inside. The direction it works in is mentally chosen by the one who activates it.
=== Orb of Echoes ===
The Orb of Echoes is similar to an Orb of Silence, however, none of the sounds that have been made inside of it will leave unless the Orb is deactivated. Every whisper and shout, every footstep and gunshot, echo around the Orb continuously. Any sonic attack that is done within the field will also be repeated in every direction indefinitely, making the affected area exceptionally deafening or even deadly.
=== Boom Sphere ===
The Boom Sphere is a modified Orb of Echoes whose echoed sounds may still be heard by those outside of the field of effect. This power is typically used to create large areas continuously effected by repeated sonic booms.
== History ==
The kiss to activate the device was chosen due to the fact that while kissing, one puts their lips into the same position as if they were saying "Shhhh," as well as a kiss being seen as a mostly silent yet powerful expression.
There is a tribe that has an Orb of Echoes in which each elder has whispered some words of wisdom. When an elder needs to make a difficult decision, they will often meditate within the Orb's area.