Product name: black laser star lampProduct model: 77690Shell material: ABSProduct color: blackPower supply demand: input 5V, 2000mAPower supply mode: USB (mobile power supply, computer, adapter)Light source: LED high-power lamp bead+laserMaximum power: 8WMusic mode: USB flash disk/card reader/BluetoothBluetooth No.: BTK01Projection distance: 2-10 metersProjected area: 120m2 at 3M and 200m2 at 5MLaser class: Class 2 (Class II)Product size: 16 * 10 * 11.8cmNet weight/gross weight: 456g/588gPackaging accessories: lamp body+remote control+USB data cable+6 language manual+English color boxcharacteristic:Four color water mark lamp combined with green laser, 10 light modes;Three brightness levels are available (30%, 60%, 100%);Bluetooth speakers/USB can help you enjoy more music, listen to lullaby or relax music on your phone, iPad and tablet through Bluetooth pairing.The voice activated flicker mode allows the projection to change color according to the music rhythm or sound, thus creating a disco effect.Built in 1H, 2H or no operation 4H automatic shutdown timer function