NEXUS Duo Plug Medium Duo Plugs are shaped for optimum comfort and satisfaction. They're made from firm yet flexible silicone and have 6 stimulation modes of vibration, pulsation and escalation. Both the toy and remote control is rechargeable and waterproof. Range is 8 metres so great to use with a partner. Duo Plugs can be used vaginally or anally and are great for beginners through to the more advanced user. FEATURES: 6 Vibration modes 100% Body safe silicone USB Rechargeable Waterproof to IPX7 standards, can be submerged up to 1m (3ft) in water for 30 minutes Standard charging time is 2 hours which will give 1 hour of playtime