DUAL MOTOR TIPS: Two motors and different facets on each side allows for a more personalized sensation. Try both sides to experience the difference. V-SHAPED EDGES: Great for focused vibration and warming up. MULTI-SPEED + TURBO: Duet has 4 patterns (wave, constant, pulsing, and alternating pulsing) and 4 power modes + TURBO setting. Donft.t underestimate the power in this compact vibe. USB RECHARGABLE: The body of Duet detaches to allow USB charging from any USB port. Dimensions: 4.55 x 1.08 x 0.48 in. / 11.6 x 2.7 x 12.3 cm Weight: 87g / 3 oz. Material: Head sleeve is body-safe silicone. Body is die-cast zinc metal. Run Time: 40 minutes Charging Time: 1 hour and 30 minutes Audible Range: 37dB ? 40dB depending on setting and power level