Double the Fun is a couples kit that features Arcwave Voy and We-Vibe Sync 2 for shared foreplay and orgasms.Arcwave Voy Features Tightness Adjustment System: Unique to Arcwave, the Tightness Adjustment System (TAS) is designed to target the Merkel-Ranvier, which are highly sensitive receptors in the penis that respond well to pressure. CleanTech Silicone: CleanTech Silicone feels natural and is more hygienic and durable than conventional stroker materials in the market. Compact Size: Voy is designed to fit perfectly in the palm of your hand. Its ergonomic shape makes it incredibly easy to hold and always gives you the perfect grip. Protector Lids: Storing your toy has never been easier. Voy includes two protector lids with ventilation holes so that Voy can quickly dry and maintain its condition. We-Vibe Sync 2 Features App and Remote Control: Use the single button on the toy or the We-Vibe app to explore more options. Play together with a partner using the We-Vibe app to give your play extra spark – across the room or a continent. Ergonomic Pleasure Shape: Sync 2 is designed to allow couples to experience shared hands-free vibrations during penetrative sex. Maximum pleasure and maximum comfort. Adjustable Fit: Sync 2 is designed with an adjustable internal arm that fits to your unique body. The ergonomic shape delivers precise vibrations that can be enjoyed by both partners during penetrative sex. 10 Intensity Levels: Sync 2 provides 10 different intensity levels, so you can control the intensity of your vibrations. Start with a gentle buzz and increase the intensity when things get hot... SpecificationsProduct dimensions:Voy: 3.3 x 3.3 x 4.5 in. (85 x 85 x 115 mm)Sync 2: 3.1 x 1.2 x 2 in. (78 x 31 x 50 mm)Packaging dimensions: 7.7 x 3.7 x 7.1 in. (19.5 x 9.5 x 18 cm)Product weight:Voy: 12.7 oz. (360 g)Sync 2: 2.4 oz. (67 g)Unit weight: 1.9 lbs. (0.87 kg)Water-resistant:Voy: Water-resistantSync 2: IPX7Materials: ABS, SiliconeWarranty: 2 years