Designed especially for male+female partner play, the DOUBLE JOY is worn internally by the woman during penetrative sex. This "u-shaped" vibe is perfect for G-spot and clitoral stimulation with the internal hinge adding firm pressure with every thrust. It's a no-brainer for any couple wanting to add a little extra ecstasy for their partnered play. Now APP ENABLED, the Double Joy opens up the opportunity for shared exploration and customization in a 'real-time' partner experience.[MEER_INFO] - Whisper mode - Rechargeable - Waterproof IPX7 - 15 years warranty - Body-friendly silicone - Compatible with any Android or Apple Smartphone, Tablet and Apple Watch - Unending range of programs with the Satisfyer App (can also be used without the app) Experience endless app highlights: - 100% data security - Remote control - Vibration creater - Ambient vibrations - Playlist vibration