TIANI Harmony is an app-connected couples’ massager with two motors that work in unison to enhance the sensations of both partners during sex. The smooth, insert-able tail is worn by the woman and brings pleasure to both partners, while the larger top brings satisfying vibrations to the clitoris. DOUBLE THE POWER- Two vibrating motors provide dual sensation inside and out. WIDER RANGE OF INTENSITIES - Experience different levels of satisfaction with 10 powerful pleasure settings. APP-CONTROLLED - Connect and control your device via Bluetooth for extended pleasure. FULLY WATERPROOF & USB RECHARGEABLE - Perfect for the bath and shower, with more power and less fuss. SPECIFICATIONS: Material: PC+ABS, Body-safe silicone Size: 45 x 30 x 90 mm Weight: 48 g Battery: Li-Ion 3.7 V 200 mAh Charging: 2 h at 5.0 V 200 mA User Time: Up to 2 hours Standby: Up to 90 days Vibration motor 1 Frequency: 208Hz Vibration motor 2 Frequency: 161Hz Interface: 1-button