SonarPen is a $30 iPad stylus that connects to the headphone jack - The Verge

An affordable alternative to the Apple Pencil

stylus accessories – SonarPen

Stylus Pen for iPad 2018-2023, Magnetic iPad Pen, Apple Pencil,Tilt Sensor & Palm Rejection,Compatible with iPad 6-10,iPad Mini 5/6,iPad Air 3-5

SonarPen - Pressure Sensitive Smart Stylus Pen with

We tried, therefore you don't have to – SonarPen and other third

Smart Stylus for Android Chromebook

SonarPen: A cheap, pressure-sensitive stylus for sketching on

This pressure-sensitive stylus makes almost any iPad mimic the

Stylus Pen with Charging Case Palm Rejection Stylus

SonarPen stylus review - The Gadgeteer

SonarPen, a pen for any device with an audio jack, iPad, iPhone

An iPad stylus that connects to the audio jack?

An iPad stylus that connects to the audio jack?

Sensitive Smart Stylus Pen for iPad, iPhone and Android - SonarPen