New M60 Spacecraft Wireless Bluetooth Smart Audio Clock Alarm Clock Night Light Plug-in TF Card To Play

Brand: APC Applicable scenarios: outdoor, home, karaoke, live broadcast, outdoor lawn, other Time of listing: 2023 Connection method: Bluetooth connection Frequency response range: 100HZ-20KHZ Signal-to-noise ratio: ≥70db Box material: Plastic Power supply method: lithium battery Whether the patent source: No Waterproof grade: Not waterproof Bluetooth version: 5.0 Built-in battery capacity: 2000mAh-4000mAh (inclusive) Rated power: 10W Net weight of product: 553g Rated voltage: 5V1A Is it built-in battery?