Monster Adventurer Max is with the top-of the line rechargeable lithium-ion battery. Just need to charge for 3 hours, and it can be played for a long time.
1For Karaoke2For Gathering3For Surfing4For Party1100W Monster Sound2Multiple Playback Modes3Easy to Control1Portable Speaker2Beach Speaker3Handle Design For better enjoyment, you should fully charge the speaker before use. The package includes a USB-C charging cable (change only,no data transfer function) that can be connected to your computer or other device made for standard USB compatible charging. Charging with 5V/2A or above power adapter (not included). Caution: ONLY use computer USB output or standard 5 volt only power adapter for charging.Damage may occur if non-standard USB power adapter is used for charging. Do not charge if connector and/or device is wet or damaged.
Charging LED indicator: red LED flashes during charging,when fully charged, the LED goes out.
Monster Adventurer Max Speaker Suitable for Outdoor Activities Incredible Stereo Sound and Deep Bass Fast and Stable Transmission More Use Time with High-Capacity Battery True HD Sound and Punchy Bass Warm Tips: Charging Precautions