The Whoop 4.0 Portable Charger Battery Pack with Black Charging Cable is a versatile accessory for the popular WHOOP activity tracker. Made of durable plastic material, this battery pack is designed to power your device for up to 7 days and is water-resistant for use in various indoor and outdoor activities. The black colour and sleek design make it suitable for both men and women. With a rechargeable battery and the ability to measure heart rate, this battery pack is perfect for gym workouts, cycling, weight lifting, swimming, yoga, and running, providing a convenient and reliable power source for your fitness tech needs.
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