哪些头皮按摩器的电池续航时间最长？

The EKZ Sonic Vibrating Scalp Massager is a silicone scalp brush designed for use in the shower and for scalp cleansing and relaxation. It uses sonic vibrations with three vibration settings and is rated as waterproof, with a hold charge time of up to 5 hours. It's suited to people who want an electric, rechargeable-style scalp massaging brush with adjustable vibration levels.

This cordless, rechargeable scalp massager has 4 rotating massage heads with 84 total silicone nodes, designed for deep shiatsu-style kneading. It offers 2 massage speeds and 2 massage modes (clockwise and counterclockwise) and is IPX-7 waterproof for use in the shower. Best for people who want a handheld scalp massager for stress relief and regular scalp stimulation.

This battery-powered scalp massager combines professional-grade stimulation, vibration, red and blue light therapy, and nano-steam technology. It suits people seeking a spa-like scalp-care experience, including those with thicker, straight, curly, or fine hair.

This cordless head massager has four kneading massage heads with 68 nodes and is designed to imitate human finger movements. It suits people seeking scalp relaxation, stress relief, and portable hair-care massage.

This rechargeable scalp-care brush provides kneading and EMS massage with six adjustable intensity settings and a serum or oil dispenser. Its 240-minute battery life and cordless design suit users who want extended, convenient scalp-care sessions for different hair types.