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, long battery service life. Supports 5W/15W wireless charging, compatibility with various devices on the market with wireless charging function, high efficiency. Specifications: Material: Plastic+Electronics Power: 5W,15W(optional) Color: black, light brown, gray(optional) Size: about 108x56x54mm/4.25x2.2x2.12inch 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.