4-head single key ordinary plug-in type (one-way clockwise forward rotation) 6-head single key ordinary plug-in type (one-way clockwise forward rotation) 8-head single key ordinary plug-in type (one-way clockwise forward rotation) 4-head single-key smart plug-in type 6-head single-key smart plug-in type 8-head single-key smart plug-in type 4-head double key plug-in type 6-head double key plug-in type 8-head double key plug-in type 12-head double key plug-in type 12-head single key plug-in type 4-head double key rechargeable 6-head double key rechargeable 8-head double key rechargeable 12-head double key rechargeable 4-head single key rechargeable 6-head single key rechargeable 8-head single key rechargeable 12-head single key rechargeable ordinary plug-in type with vehicular connection cable (without household adapter) 16-head double key plug-in type 8-head double-key kneading + vibration (plug-in type) 16-head four-key plug-in type

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