Achieve true portability and stereo sound with the black Denon HEOS 1 Series 2 Wireless Speakers and HEOS 1 Series 2 Go Pack. The two speakers can be paired together either for true stereo sound or to provide multi-room audio. The included Go Pack will allow you to take one of the speakers on the go for up to six hours of portable listening. The Go Pack also provides a splashguard designed specifically for the HEOS 1 Series 2, making it IPX4 splashproof-compliant for poolside use.