Stjerna Automatic 3-Speed Penis Pump | Raeven CORE

The Stjerna Automatic 3-Speed Penis Pump from Raeven CORE uses motorised suction to remove the repeated hand pumping required by a manual penis pump.

Choose from three suction levels and let the battery-powered motor create the vacuum inside the clear cylinder. Starting on the lowest setting gives you a straightforward way to increase suction gradually while monitoring positioning and response through the transparent chamber.

Stjerna measures 30 cm in overall length with a listed 20 cm usable chamber length. A pressure-release control lets you reduce the vacuum when needed without relying on a manual trigger or bulb.

The pump runs on three AAA batteries, sold separately, so there is no charging cable or recharge cycle to manage.

For shoppers comparing automatic and manual penis pumps, the Bygge Trigger Handle Penis Pump lets you build suction manually with repeated trigger pulls.

For another manual option, the Oster Bulb-Style Penis Pump uses a hand-squeezed bulb and flexible hose.

Features

• Automatic motorised suction: Creates vacuum without repeated manual pumping.

• 3 suction levels: Select from three powered settings.

• Clear cylinder: Lets you monitor positioning and response throughout use.

• Pressure-release control: Reduces vacuum when needed.

• 30 cm overall length: Large automatic pump format.

• 20 cm listed chamber length: Published usable cylinder measurement.

• Battery powered: Requires 3 x AAA Batteries - sold separately. 

• No charging required: Conveniently uses replaceable batteries rather than a rechargeable internal battery.

• Raeven CORE product: Part of Raeven’s penis pump range.

Specifications

Use, Pressure Control and Care

Apply a generous amount of Slide Water-Based Lube 100ml around the entrance of the pump and the penis to help create a seal and reduce friction.

Position the penis comfortably inside the clear cylinder and begin with the lowest suction level. Increase the setting gradually according to comfort rather than aiming for maximum pressure.

Use the pressure-release control whenever you want to reduce the vacuum. Stop immediately if pumping causes pain, numbness or unusual discomfort.

Clean the pump after use, dry it fully and store it in a clean, dry place.

If you are researching DIY or homemade pumps, read Raeven’s Homemade Penis Pump, which explains the risks of improvised suction systems and why controlled, purpose-made pumps are the better option.

Every order is sent in plain, discreet packaging, with no product details visible on the outside.

Browse the full Penis Pumps collection to compare automatic, trigger-handle and bulb-style pumps.