Product Selling Point: Testicular stimulation Sensitization training Multifrequency electric shock Wireless remote control Description: Function: electric shock Material: TPE+ silicone Color: transparent, black Product size: set of -75*47mm line length is about 100cm. English Host Mode: stepless speed change Size: 100*60*15mm Power supply: 2 7th batteries (not included) Frequency: 2-100hz Naked weight: about 48g Remote Control Host Mode (strength): 8 kinds and 19 grades. Size: 61*61*17mm Power supply: USB charging Battery capacity: 150mAh Current output: 35mA max. Frequency: 1-100hz Naked weight: about 31g The charging time is about 2.5 hours, and it can be used continuously for about 7 days for 15 minutes every day. Remote Control Size: 86*40mm Power supply: 1 CR2025 button cell. Remote control distance: 15m at most.