Resseor Swim Tempo Trainer audible stroke timer — Yellow, IP68 waterproof, adjustable tempo control

Resseor Swim Tempo Trainer is a compact, IP68-rated audible metronome and stroke timer that fits under a swim cap to deliver precise pace cues and three training modes for swim and multi-sport cadence work.

The Resseor Swim Tempo Trainer combines a waterproof housing, ultra-fine tempo control and three dedicated modes so you can practice consistent stroke rates, lap pacing and strokes per minute without relying on pool-side watches or coaches. Designed to sit under a cap or attach with the included clip for dryland use, it provides clear audio beats to keep your rhythm steady across intervals, open-water swims and cross-training sessions.

How does the tempo trainer help me keep a steady swim rhythm?

The device emits audible beats that act like a metronome for your stroke timing, making it easier to maintain even cadence and avoid drift during repeats. Instead of guessing pace from feel, you follow the sound, which reduces variability across sets.

• Audible pace signals delivered under a swim cap for hands-free guidance.
• Tempo adjustable in 0.01-second increments for micro-tuning cadence.
• Three modes tailored to stroke rate, lap pace and strokes-per-minute tracking.
• Works equally well for pool intervals and open-water sets up to 10 meters deep.

What exactly are the three training modes and when should I use each?

Resseor offers three separate settings so you can target different aspects of swim performance: stroke rate control to refine turnover, lap pace for interval consistency, and a strokes-per-minute counter for technique drills. Switch modes quickly between sets to focus on tempo, endurance or efficiency as needed.

• Stroke-rate mode for improving turnover and tempo-focused sessions.
• Lap-pace mode for keeping interval times consistent across repeats.
• Strokes-per-minute mode for technique work and reducing wasted movements.

Is this device durable and usable outside the pool?

Yes—Resseor is built to IP68 waterproof standards, surviving submersion up to 10 meters, so it holds up to pool training and open-water conditions. A removable clip enables use on a waistband or gear during running and cycling, turning it into a versatile cadence tool for multiple sports.

• IP68-rated housing for reliable performance in water and rough conditions.
• Compact profile fits discreetly under most swim caps without drag.
• Clip accessory for dryland use on clothing or equipment.
• Battery and controls positioned for easy adjustments between intervals.

How precise is the tempo control and how will that affect my training?

The Resseor tempo adjustments can be tuned down to one-hundredth of a second, letting you select an exact beat that matches your target cadence or incremental improvements. This high resolution helps you make small, measurable changes to stroke rate and pacing rather than relying on broad guesses.

• Ultra-fine tempo increments (0.01 seconds) for precise cadence dialing.
• Immediate auditory feedback so you can adapt stroke rate in real time.
• Useful for pacing tight intervals and progressive tempo workouts.
• Helps create repeatable, trainable rhythm for technique and speed work.

Who is this for: Swimmers and multisport athletes who want a compact, waterproof tool to control cadence and lap pace. Competitive swimmers, triathletes, masters athletes and coaches will value the audible, under-cap delivery and fine tempo control for repeatable training. If you prefer hands-free, real-time pacing cues and a device that doubles as a dryland cadence trainer, Resseor is designed to integrate into focused technique sessions, interval sets and open-water practice without adding bulk or drag.