... jade, other colors also available2. With an on/off switch on the bottom of beer mug3. Flashes when ... mug is taken up, and the light will be off when we put it down4. Volume: 500ml 5. ... red, 2 x blue, 2 x greenWith on/off buttonPCB board could take out for clear the outer ... partsCustomized designs acceptedSuitable for Pub, KTV, Disco, Birthday Party, Dancing Hall, etcRemarks:OEM Provided, new designs and ...