Denon HEOS Go Pack

The Denon HEOS Go Pack is designed specifically for the HEOS 1 to make it truly portable. It locks in place to the bottom of the HEOS 1. When the speaker is connected to AC power, the Go Pack's built-in battery automatically charges. At full capacity, it'll keep the HEOS 1 playing for up to 6 hours. A rubberized cover seals off and protects the speaker's connections against moisture, so you can use your HEOS 1 both in and out of doors around your home.