20 watts of deep power make the Acuvibe comparable to the Hitachi Magic Wand. And with only 8 hours to a full charge and 45 minutes of use at its highest speed, this rechargeable wand features convenience that's absent in some corded units. Release "tension" with the Acuvibe's flexible, power-spring head. The Acuvibe's powerful two-speed motor is whisper-quiet. 11 1/2" long, 2" in diameter.