Hi,

UmSEL is not in production yet. We did a prototype run, but decided to make the performance better and we're still working on that. It's not a high priority for us, as UmTRX works very well even without UmSEL up to a few kilometers (with boosters).

On Tue, Apr 29, 2014 at 3:33 AM, 蒋文怡 wyjiang@ljshuoda.com wrote:

Hi,

Is there anyone know about the UmSEL? I want to buy it, but I cannot find any information for sale.

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Wenyi Jiang