Portable Wireless Buletooth Speaker Outdoor Multi-functionSurround sound box HIFI Stereo TF Card FM Loudspeaker?Feature:?The appearance is fashionable and trendy, and the hand feel is comfortable. The pure color and simple style of the appearance reflects the exquisite fashion design; the surface is frosted and feels comfortable; the standard lanyard is easy to carry;Bluetooth 5.0 high-definition decoding, fast and stable, transmission distance up to 10M or more; connection distance: up to 10-30m (barrier-free); Product performance: fast connection, stable sound quality, uninterrupted music/video playback, no stuck; Connection method: 5.0 Bluetooth audio decoding for clearer and lower-latency calls, high-definition decoding, and higher fidelity sound quality enjoyment; Humanized and intelligent details: the speaker supports automatic reconnection to the last connected device, better human-computer interaction?Large-capacity battery can play continuously for 6-18 hours. Specific configuration: Built-in 500mAh rechargeable lithium-ion battery; Low volume state: 18 hours of continuous play time; Normal volume state: 12 hours of continuous play time; High volume state: 6 hours of continuous playback time.?Top-level speaker configuration: active 40mm sound unit and passive woofer; sound quality description: clear vocals, high frequency penetrating power, low frequency strong and powerful;High-definition Bluetooth hands-free calling: built-in microphone, integrated noise reduction and echo cancellation technology, allowing you to answer calls at any time. (in Bluetooth mode);Portable card reading mode: Micro SD, insert the card to play the music in the card; Multi-format support: MP3/WAV and other audio files;Built-in automatic FM radio, you can search for stations with one key, change channels freely, convenient and fast, listen to broadcast information at anytime.