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Kinglucky 3317 wireless speaker, with bass speaker, stereo speaker, subwoofer, outdoor wireless speaker, party disco light，usable TWS\TF\MUX\BLUETOOTH Function: card insertion, radio Type: BT speaker Connection method: BT connection, card reader Interface type: card reader, USB Frequency response range: 100HZ-20KHZ Output power: 10W Signal to noise ratio: ≥ 75dB Power supply method: built-in lithium battery Number of speakers: 2 Effective distance: 10 meters Operation method: buttons Applicable audience: general Display screen: None Playback format: MP3 Shell material: plastic Does it support apps? No Supported formats: TF card, USB drive Speaker adjustment method: buttons Box material: plastic Article number:HY-3317 Color: Black Power mode: USB Waterproof grade: non waterproof Internal battery capacity: 2000mAh -4000mAh Battery capacity: 2400 mA