>>288676274
i'm the lasted you quoted and i use an anker 20100. i originally planned clipping it to my belt because i thought it would be to much for a counter weight but it seems perfect, there also happens to be a design that i printed that fits it perfectly. for 3-4 hours you don't need a battery bank, but it allows you to keep the headset topped up at all times or recharge while playing/taking a break