Product Details Product name: G9 Demon TF Bluetooth speaker with alarm clock and subwoofer Functions: card, voice prompt, call function Applicable scenarios: car, desktop, fitness, outdoor, home, mobile, square dance, outdoor lawn speaker unit: 1 Type: Bluetooth speaker Connection method: Bluetooth connection Interface type: card reader Frequency response range: 100HZ-20KHZ Output power: 3W Signal to noise ratio: 70db Power supply mode: built-in lithium battery Channel: 2 Playtime: 8 hours Scalable storage: 32GB Number of speakers: 1 speaker+bass diaphragm Effective distance: 15 meters Operation mode: button Applicable population: general Display: Yes Playback format: MP3 Housing material: plastic Support for APP: No Supported formats: TF card Speaker adjustment method: key Is there a radio function: No Box material: PE External dimension: 8.5X8.5cm Product weight: 0.28 (KG) Packing List: Host Manual USB Charging Cable Pack Color: black, white, pink Power: USB Waterproof grade: non waterproof Bluetooth version: 5.1 Shell technology: high gloss Built-in battery capacity: 1200mAh to 2000mAh Bluetooth protocol: 5.1 Pluggable memory card for long battery life Voice prompt, call function Alarm settings, high gloss housing Item NO.125582898