Luucco Air Wave K2 Wireless Lavalier Microphone

Wireless: Digital 2.4GHz
Transmission: Omnidirectional
Built-in Microphone: Frequency Range: 50Hz-20kHz
Sensitivity: -35dB±2dB@1KHz
Sound delay: ＜20ms
Signal to noise ratio: ＞80dB
Bit Depth: 24 bit
Sampling Rate: 48 kHz
Operation Range: 100m (328ft) (Line of Sight)/30m (100ft) for NLOS
Battery Capacity: TX: 80 mAh; Charging case: 400 mAh
Operating Time: 6 hours; Charging case: ＞1.5 times charging
Charging Time: 1.5 hours
Weight: TX: 9g(0.3oz) Smartphone RX: 4g(0.14oz)
Size: Charge case: 90 x 42 x 67(3.5″ x 1.7″ x 2.6″)
TX: φ24 x 10.3mm(0.9″ x 0.4″)
Mobile Version RX: 34.5 x 13 x 8.2mm(1.4″ x 0.5″ x 0.3″)
Camera Version RX: 36 x 22.8 x 16(1.4″ x 0.9″ x 0.6″)