These are transmitter and receiver for bass, electric guitar, acoustic guitar, electronic wind instrument. The system handles 2.4 GHz ISM, steadily transmitting, the effected distance is 30 meters, automatically frequency hopping, high anti-interference, without any delay, plug and play.

Specifications:
Material: ABS
Sample Rate and Accuracy: 48kHz / 16bit
Distance: 30m
Delay: <5ms
Frequency Response Range: 20Hz-20kHz
Distortion: ≤0.02%
Channel: 18
Frequency: 2.4GHz ISM worldwide
Battery: 3.7V / 600mAh rechargeable lithium battery
Charging Interface: Type-C
Joint: 6.5mm
Host Thickness: 1.5cm / 0.59in
Item Size (Expanded): 110 * 42mm / 4.33 * 1.65in (L*W)
Item Size (Unexpanded): 65 * 42 * 28.5mm / 2.56 * 1.65 * 1.12in (L*W*H)
Item Weight: 42g / 1.49oz (Single Transmitter / Receiver)
Package Weight: 177g / 6.25oz
Package Size: 16.5 * 11 * 4.5cm / 6.50 * 4.33 * 1.77in

Package List:
1 * Transmitter
1 * Receiver
1 * Charging Cable
1 * Instructions (Chinese & English)

Note:
1. Please keep it in dry condition.
2. If you don' t use this wireless system in a long time, please do not keep turning on the power, please use the charger which it s not more than 5V and 500mA.
3. Due to manual measurement, the size may be slightly different. Thank you for your understanding.
4. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object.