Feature: 1. BLUETOOTH 5.0: Retro speaker uses upgraded Bluetooth 5.0 connectivity for faster transmission, lower power consumption, and better anti interference capability. 2. STEREO: Retro bluetooth speaker has 360 degree stereo sound effect, surround HiFi sound quality, up to 6 hours of battery life. 3. HIFI: Bluetooth speaker has HiFi grade sound speaker with HiFi chip, excellent use, simple connection, free play. 4. PLAY MODES: Vintage bluetooth speaker has Bluetooth connection, U disk, small memory card and sound output multiple play modes. 5. SMALL AND CONVENIENT: Vintage speaker has a delicate and compact appearance, light weight, does not occupy too much space, easy to carry. Specification: Item Type: Retro Bluetooth Speaker Material: Plastic, Electronics Bluetooth Version: BT5.0 Transmission Frequency: 60MHz to 120MHz Bluetooth Reception Distance: Straight Line Without Obstacles Greater Than or Equal to 10m/10.9yd Speaker: 40mm/1.6in 4 Ohm 3W Charging Voltage: DC5V 300‑400mA Charging Time: 2‑3H Operating Hours: Volume Maximum Greater Than or Equal to 3H, Volume Minimum Greater Than or Equal to 6H Function: Bluetooth Connection, U Disk, Small Memory Card, Sound Output Battery Type: Built in 400mAh Lithium Battery. Package List: 1 x Vintage Speaker1 x Sound Cable1 x Charging Cable