HM11 2nd Gen Retro Bluetooth Speaker Portable Wireless Speaker Support U-disk TF Card AUX - Green Premium Sound QualityEquipped with a 3W high-fidelity speaker and advanced audio chip,this Bluetooth speaker delivers Hi-Fi sound for an immersive music experience Bluetooth 5.0 ConnectivityFeaturing Bluetooth 5.0 technology,it ensures faster transmission,lower power consumption,and enhanced anti-interference ability,allowing seamless and stable connections Timeless Retro DesignDesigned with a classic rotary knob for infinite volume adjustment,it combines vintage aesthetics with modern functionality for a nostalgic yet practical experience Portable and DurableLightweight and compact,this speaker comes with a sturdy leather handle,making it easy to carry outdoors without compromising durability Versatile Playback OptionsSupports multiple playback modes,including Bluetooth,memory card,U-disk,and AUX input,providing flexible options for all your audio needs Support Hands-Free CallingEnjoy hands-free calling with a single button when connected to your phone Specifications: Connection method: Bluetooth connection Frequency response range: 40HZ-20KHZ Output power: 3W Wireless distance: 10m Signal-to-noise ratio: 75dB Playing time: 6 hours Charging time: 2-3 hours Memory card: up to 32GB Bluetooth protocol: 5.0 Battery capacity: 400mAh Bluetooth connection method: long press the power button in the middle,turn on the audio,then turn on the Bluetooth on the phone to find the Bluetooth "HM11",and just connect it Package included: 1 x Speaker 1 x Charging Cable 1 x English and Chinese User Manual Other things not included