[MINI SIZE & LOUD VOLUME] 9.5 cm x 7 cm x 5 cm retro Bluetooth speaker, small enough to be held in one hand. This vintage-style speaker is both stylish and functional, compact yet capable of delivering loud, clear sound without distortion. The portable design makes it easy to carry and store, fitting comfortably in a backpack or pocket. Enjoy music outdoors during camping, hiking, biking, or at the beach. [WIRELESS CONNECTION & HANDS-FREE CALLS] Equipped with advanced Bluetooth wireless technology and a built-in microphone, this speaker allows for quick and stable pairing with your smart devices in seconds. Stay connected for hands-free calls or conference calls whether at home, on the go, or traveling. [RETRO DESIGN & TIMELESS STYLE] Featuring a classic aesthetic with a smooth blue finish, this vintage-inspired Bluetooth speaker blends retro charm with modern functionality. Its elegant appearance sets it apart from ordinary speakers, offering a unique style for music lovers. [MULTIFUNCTIONAL USE] Easily adjust volume using the rotary knob. Supports multiple input methods including Bluetooth (up to 33 feet range), USB drive, TF card, and AUX input (compatible with standard 3.5mm audio cables up to 2 meters). Charge conveniently using the included USB cable. Specifications: Product Name: Retro Bluetooth Speaker Play Time: 2-3 hours Speaker Output: 3W Frequency Response: 50 Hz - 20 kHz Battery: 3.7V 400mAh Bluetooth Range: 10 meters Net Weight: 190g Gross Weight: 230g Charging Time: 2-3 hours Product Dimensions: 9.5 x 7 x 5 cm Supported Functions: Bluetooth, USB, TF Card, AUX Input Bluetooth Version: 4.1