Distance between transmitter and receiver :>10m

Polar pattern

Cardioid

Frequency response

65 Hz-15kHz

Signal-to-Noise(S/N) ratio:60 dBA

UHF frequency band:470-960MHz(depends on SKU)(EU 657-662MHz)

THD:0.5%, typical

Dynamic range:100 dB A-weighted, typical

Transmitter transmitting power:<10 mW, typical

Receiver input:1/4"(6.3 mm) unbalanced

Receiver maximum Output Level:-13dBV,typical

Receiver rechargeable Battery:Lithium-ion Polymer 3.7WH(Equivalent to 3.7V, 1000mAh)

Receiver charge time :2 hours @5V/1A

Receiver battery Playtime:Up to 6 hours

Microphone battery

4 x AA alkaline (included)

Dimensions

(W x H x D)

Microphone Φ50 x 233mm/1.95"x 9.16";

Receiver 70mm x 80mm x 20mm/2.75"x3.14"x0.78"

Weight 

Microphone 235g/0.52lb;

Receiver 54g/0.12lb