waterproof level： Life waterproof

(Pulse Oximeter + packing box) * 1

Function: sterilization

Gain stability: One minute after energizing the device

Apply only to clean

K52 Wireless Audio Integrated Karaoke Speaker Color:Blue Single Microphone waterproof level： Life waterproofProduct information: Power type: lithium battery Color: white single label, pink single label, Blue single label, white double label, pink double label, Blue double label Frequency range: 100Hz 20KHz Rated Voltage: 5V Additional functions: card insertion, remote control, timing, and voice prompt Rated Power: 5 Packing list: 1 * speaker+1 * microphone 1 * speaker+2 * microphone Product Image: