Bluetooth protocol: 5.00
Signal to noise ratio: ≥70db
Extended storage: 32GB
Material: ABS plastic + feel oil
Weight: About 220g
Built-in battery: Built-in 1200mAh lithium battery
Play time: About 18 hours
Charging time: 3-4 hours
Drive device: 1*3.5 full frequency unit
Frequency Range: 50Hz-18KHz
Product Features: Bluetooth connection, hands-free call, TF card playback, FM radio
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