With this portable speaker, you can enjoy a high definition stereo sound with an impressive- no matter where you are. Features: Simple appearance and fashion style. Adopts superior material, provides you comfortable hand feeling. BT 5.0 version ensures quick and secure connection with all BT-enable devices. The BT transmission distance up to 10~15m. Provides outstanding stereo sound with an impressive-. Built-in large capacity lithium-battery, supports long time use. Wirelessly portable design, convenient to carry outside. Specifications: Model: MY225BT Material: Metal + Silicone Color: Blue, Black, Red, Grey (Optional) BT Version: 5.0 Effective Distance: 10-15m Horn: 52mm Horn Resistance: 4Ω Output Power: 5W Distortion Degree: <=3% Frequency : 60Hz-20KHz USB/TF Card Capacity: <=32GB Music Format: WAV/MP3 Power Supply: 3.7V/1200mAh Lithium-Battery Play Time: >=8h (in Middle-) Charging Voltage: D C5V/1A Charging Time: >=2h Item Size: 94 * 94 * 65mm / 3.7 * 3.7 * 2.56in Item Weight: 292g / 10.3ounces Package Size: 152 * 152 * 71mm / 5.98 * 5.98 * 2.79in Package Weight: 440g / 15.52ounces Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * BT Speaker 1 * Charging Cable 1 * User Manual