Features: 2 in 1 design, it is both wireless bluetooth-compatible Loudspeaker and wireless charging dock. High performances BLE5.0 chip, stable and fast connection, almost no delay, with a transmission distance of about 10m. Low frequency diaphragm, no loss, full-bodied sound, bringing you immersive feeling. Build in 300mAh battery, super long working time up to 3hrs and long battery service life. Compatibility with various devices on the market with wireless charging function, intelligent recognition of products without wireless charging function, high efficiency. Support AUX playback, supports phones, laptops and more product with 3.5mm port . Specifications: Material: Plastic+Electronics Power: 10W Color: black, light brown(optional) Size: about 108x66x54mm/4.25x2.59x2.12inch Bluetooth-compatible version: BLE5.0 Loudspeaker: 4Ω 3W Power: 5V1A Package Includes: 1pc Multifunctional Wireless Bluetooth-compatible Loudspeaker note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.