Pulse Solo Interactive Powered by Kiiroo

Oscillating PulsePlate, no stroking motion needed
Can be used without an erection
Eight oscillation speeds
Five vibration modes with adjustable frequency
Waterproof
USB rechargeable
Quiet in use, under 55 decibels

Size: approx. 11.7 x 6.7 x 7.2 cm (Hot Octopuss state 4.6 x 2.64 x 2.83 inches)
Weight: approx. 220 g (7.76 oz)
Materials: silicone and ABS
Motor: 3.6V Precision Microdrives
Battery: rechargeable lithium-ion, 3.7V 420mAh
Charging: USB, 3 hours
Run time: up to 1 hour
Noise: under 55 dB
Waterproof: yes
App connectivity: not described in the supplier's product information (confirm with supplier)

No erection is needed for it to work, which may help where erectile function has changed
No stroking motion is needed, which may help where hand strength, grip or repeated movement is difficult to sustain
It is small and light enough to be held in place rather than moved
It is waterproof, so it can be used in the shower or bath

Waterproof, so it can be washed with warm water and a mild soap or a water-based toy cleaner after every use.
Dry it fully, particularly around the charging point, before storing.
Use a water-based lubricant. Silicone lubricant can damage a silicone surface over time.