Operation method: button, shell material: metal, appearance size: 93X93X63mm, color: blue, red, gold, silver, frequency response range: 80Hz-20KHz, output power: 3.2W, display screen: none, supported format: TF card , interface type: micro USB, signal-to-noise ratio: 80dB, effective distance: 10 meters, product material: metal, Bluetooth version: 5.0, speaker unit: 1, type: Bluetooth speaker, playback time: 6 hours, playback format: MP3 , Power Mode: USB, Shell Technology: Metal, Function: Card, Voice Prompt, Call Function, Bluetooth Protocol: 2.1, Product Weight: 0.38kg, Battery Capacity: 600mAH, Certificate Type: CQC Certification, Applicable People: General, Whether With radio function: no, speaker adjustment method: button, package type: official standard, extended storage: 32GB, channel: 1, number of speakers: 1, power supply method: built-in lithium battery, packing list: official standard, built-in Battery capacity: 1200mAh-2000mAh, connection method: Bluetooth connection,