SBS TEJZWITCH3BTK portable/party speaker Black 3 WA handy and convenient speaker that fits in a sling bag If you want to take your music with you, the Witcher 3 Speaker is the portable speaker for you. The integrated wrist strap ensures optimum comfort when outdoors. You can safely attach it to your bike handlebars or rucksack with the carabiner hook. Its compact dimensions and lightweight design means you can even carry it in a handbag or sling bag. Not just wireless: use with jack cable and TF