Trendy Container DesignFeaturing a unique container-inspired shape, this portable speaker boasts a cool and stylish appearance that stands out from the crowd. Powerful Sound in a Compact PackageEquipped with a 52mm large dynamic driver, this small speaker delivers impressive sound waves that belie its size. Long-Lasting Battery LifeWith a 1200mAh battery capacity, enjoy extended playtime and standby time for uninterrupted listening sessions. Versatile Connectivity OptionsConnect via Bluetooth-compatible, AUX audio cable, or TF card for maximum flexibility in how you enjoy your music. Built-in HD MicrophoneFeaturing a high-definition microphone for clear hands-free calling, with one-touch answer functionality for easy conversations. TWS Stereo PairingPair two speakers for True Wireless Stereo (TWS) functionality, creating an immersive, cinema-like audio experience. Specifications: Model: RB-M23 Bluetooth-compatible Version: 5.4 Charging Time: 2-3 hours Playtime: Up to 4 hours Impedance: 4 Frequency Response: 70Hz~20KHz Speaker Power: 5W Operating Voltage: 5V Battery Capacity: 1200mAh Connectivity: Bluetooth-compatible, AUX, TF Card Package included: 1 x Speaker 1 x Charging Cable 1 x English and Chinese Manual