WS1816 Wireless Bluetooth Microphone Color:Red 3) Permanent printing performance is

3) Permanent printing performance is achieved primarily on absorbent surfaces

AC Power Frequency Filter (50/60Hz)

There is a hook on the base and metal handles on the top

three batteries

Touch screen: yes

WS1816 Wireless Bluetooth Microphone Color:Red 3) Permanent printing performance isProduct name: ws 1816 Support various smart phones of Apple and Android systems. Speaker power: 4 3W Signal to noise ratio: 85dB Frequency response range: 150 20KHZ Audio interface: 3. 5mm stereo headphone plug Charging time: 35 hours Play time: 5 8 hours with full charge and intermediate volume Power adapter requirements: input voltage: 220V output voltage: 5V current 1A 2A