Product Features:

• Beautifully transparent battery design, allowing you to see the straps through it.

• Continuous Power: Lasts for days without the need for frequent recharging.

• Portable Charging: Place it on top of the Whoop 4 band for charging while you use the Whoop, without removing it.

• Charges via USB Type-C input.

• Dust resistant: IP68 rating.

• Waterproof: Safe up to 1 meter depth for up to 2 hours.

Warranty: 1 year.