
This only has a typical range, I bought it because it was advertised up to 300ft but it doesn't go further than other Bluetooth devices so it's the Extra charge not worth money, in fact it's a lot more than other devices with no benefits that I can identify. I raised it about 5 feet on the stem to give it the perfect amount of headroom. for RF, which brought no improvement. I bought this because my IOGEAR USB 2.1 GBU421 bluetooth micro adapter was only 30ft at work when there were intermediate structures and it's no better and much bigger and more expensive than the GBU421 so I'm returning it. I tested it with Sony DR-BT100CV and Motorola S305 with the same results. Bottom line, it's not worth the extra cost or size, you can get the same performance for less money and with a much smaller device.

Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V To 1.25-37V DC 36V To 24V To 12V To 5V Volt Power Supply Module With LED Voltmeter Display Compatible With Car Motor Buck
16 Review

Kohree 36V To 12V DC/DC Converter Regulator - 10A 120W Golf Cart Voltage Reducer
17 Review

Germany France Travel Power Adapter,TESSAN Schuko Plug With 2 USB Ports 2 AC Outlets, US To European Europe German French Spain Iceland Norway Russia Korea Adaptor(Type E/F)
17 Review

HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review