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Item No.: 173 Power supply mode: built-in lithium battery Frequency range: 100HZ-20KHZ Play format: MP3, WMA, WAV With or without radio function: Yes Product weight: 0.26 Whether it is exclusively for cross-border export: Yes Packing list: machine audio cable packing Horn adjustment method: button Applicable people: general Battery capacity: 500 mA Waterproof level: not waterproof Function: insert card, radio, call function Power type: USB Whether foreign trade: No Color: pink, yellow, black, red, orange, dark blue, light blue, gray, light green, cyan Built-in battery capacity: 300 mA-500 mA Bluetooth protocol: 5.0 Output power: 5W Connection method: Bluetooth connection Interface type: USB Appearance size: 121*45.5*90.8mm Channel: 2.1 Cabinet material: metal Shell material: plastic Operation mode: button Play time: 6 hours Effective distance: 10 meters Support format: TF card Signal to noise ratio: ≥75dB Expansion storage: 8GB Type: Bluetooth speaker