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here are some examples I was able to find https://www.amazon.com/?tag=pcper0a4-20 https://www.amazon.com/dp/B079HM7D95/ref=cm_sw_r_cp_ep_dp_kWm.AbBD7399Q https://www.amazon.com/dp/B079MC67PC/ref=cm_sw_r_cp_ep_dp_9Vm.Ab266FJX4 https://www.amazon.com/dp/B079HJCZ45/ref=cm_sw_r_cp_ep_dp_TVm.AbVPS3VF5 https://www.amazon.com/NuForce-BE6I-BLACK-Wireless-Bluetooth-Headphones/dp/B01FWB1QAY/ref=as_li_ss_tl?s=electronics&ie=UTF8&qid=1526617849&sr=1-3&keywords=optoma+nuforce+be6i&th=1&linkCode=sl1&tag=techoftomo-20&linkId=02df5a5ccc03d406304113b0ecb384dd Shortlink versions: https://amzn.to/2Grybd https://amzn.to/2IvQ1gY Thank you for the great extension Chris