Amitayus Tibet Tech 1-DVD Solar-Powered Prayer Wheel - 13,400,000,000 Amitayus Prayers on One DVD - Amitayus helps us have a long life to benefit others This Amitayus Tibet Tech 1-DVD solar-powered prayer wheel contains 13,400,000,000 Amitayus Prayers on One DVD Amitayus helps us have a long life to benefit others. Just one rotation of the Amitayus Tibet Tech 1-DVD prayer wheel is equivalent to reciting the Amitayus prayer continuously (at 1 prayer/second) for 425 years! Rotates continuously at approximately 3 turns per minute. No electricity required.