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Latest coupon and price update (UTC):
? Ratio: more than 58dB, ? Power supply: 2x AA battery and 2x AAA battery (not included), ? Sensitivity: – 44 +/- 2dB RL = 680 ohm Vs = 1.5V (1KHz 0dB=1V / Pa), ? Radio frequency power: 10dBM / 10MV, ? Receiver frequency: 565 – 584MHz, ? It has clear transmission and superior range in UHF band, ? Easily change the frequency when experience interference, ? On-off control: physical switch, ? It can be used for more than 4 hours, ? Directivity: unidirectional, ? Impedance: 1 – 1.9 Kohm, ? Frequency response: 50Hz – 16KHz – S / N
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $18.99).
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).