Quick Details Is wireless:Yes Wireless Type:Other Support Memory Card:No Vocalism Principle:Electrostatic Volume Control:Yes Control Button:Yes Codecs:Sbc Private Mold:Yes Battery Indicator:Digital Display Brand Name:OEM Style:In-ear Communication:Wireless Use:Portable Media Player, Mobile Phone, Aviation, COMPUTER, Dj Function:Noise Cancelling, Microphone, LED Display, 1- Digital Display 2- renaming Cord Length:Wireless Waterproof Standard:IPX 0 Active Noise-Cancellation:Yes Product Name:tws earphone charging box battery:300mAh earphone battery:30mAh Play time:3.5 hours Working Distance:up to 10m wireless version:5.0 Warranty:12 months Certification:CE & ROHS Package:COLOR BOX Packaging & Delivery Selling Units: Single item Single package size:  21X8X10 cm Single gross weight: 0.200 kg Package Type: Carton :58.5*48*22cm 100pcs/carton NW: 9.3 KG GW: 10.3 KG CBM / carton: 0.062