Product Name: LED Party Light up Mask with Sound Active for Halloween Festival Rave Model NO.: BT-Y-0627-02 Color: Multicolor Suitable for: All Material: Plastic Type: Mask Packing Size: 27*19*3cm Packing Weight: 100g Export Packing Box Quantity: 100PCS Export Packing Box Size: 32*97*56cm Export Packing Box Weight: 10kg Trademark: Better Transport Package: Carton Specification: 27*19cm Origin: China HS Code: 3926909090 Product Description LED Party Light up Mask with Sound Active for Halloween Festival RaveName:MaskNumber:BT-Y-0627-02Use Batteries:2xAAAController:Acoustically Controlled LuminescenceOperating Voltage:60-200V, 110VWorking frequency:500-3000HZ, 1500-2000HzWorking brightness:30 cd/m2-126 cd/m2Usage power:108 mw/m-1032 mw/mService life:about 5000 hoursLIGHT UP MASK ILLUMINATES YOUR MEMORIES : Unique design attracts people. Your excited memories are inscribed in the chestYOU'RE UNIQUE STAR :Regardless of where you are you'll be getting tons of attention from others who are curious about your Unique Light Up Mask3 LIGHTNING MODES : Full on / Slow Blink / Sound ActivatedLED MASK GIVES HAPPINESS EVERYWHERe :For Halloween, Christmas, Party, Dancing, Costume Parties, Masquerades, Rave Festivals, Carnivals, and morePRODUCT DEscriptION :Power type : AAA battery ( 2 required ) Not built in / Material : Environmental plasticI didn't have single problem with this mask. It's perfect just like the photo! & my favorite part is how it's sound activated. The sound activation is very sensitive so when I wear this at my music festival coming up, it is going to be awesome! Not a single regret here! Well worth the money spent!