Mouthpiece for teeth whitening

A system comprising:

• a whitening light comprising:
• a mouthpiece having a first light array arranged along a lower portion of the mouthpiece for directing light onto an exposed portion of a plurality of lower teeth of a user and a second light array arranged along an upper portion of the mouthpiece for directing light onto an exposed portion of a plurality of upper teeth of the user;
• and
• a rear portion comprising a first charging mechanism and a first power source comprising a rechargeable battery, the first power source communicably coupled to the first light array and the second light array, wherein the rechargeable battery has a power output sufficient to power the whitening light to automatically activate the first light array and the second light array to emit light configured to whiten teeth upon selection of a button on the rear portion of the whitening light to commence a treatment session, to emit the light for a predetermined duration corresponding to a duration of the treatment session, and to automatically switch the first light array and the second light array to an off-setting following expiration of the predetermined duration;
• and
• a case comprising:
• a cavity sized to receive the whitening light;
• a second power source;
• and
• a second charging mechanism communicably coupled to the second power source and configured to electrically couple with the first charging mechanism to transfer power from the second power source to the rechargeable battery of the first power source when the whitening light is positioned in the cavity.