Magnetic Design: The bottom of the speaker has magnetic attractionfunction, easily attaches to objects that supportmagnetic attraction. Amazing Sound Quality: 40mm high-sensitivity full-frequency unit.Sound detailsare clearly produced; Music/game dual modes can meetvarious entertainment needs. 7 Hours Battery Life Play While Charging: Large-capacity battery in the small body.Uninterrupted play for 7H, or play while charging. Bluetooth 5.3 Connection: Stronger anti-interference capability, more stable faster, and more power-saving connection. Compatible WithVarious Devices: Compatible with phones, laptops, tablets,and other Bluetooth smart devices. Bluetooth name:M2 Distortion limited output power:5W Frequency response:250HZ-20KHZ Hom unit:40mm moving coil Bluetooth distance:about 10 meters Rated input:5V-500mA Bluetooth version:5.3 Bluetooth protocol:A2DP, AVRCP Noise level:Less than 25dB(A) Horn impedance:4Q Battery capacity:600mAh Size:40x50x55mm Colour:B:Black Material:Plastic Package Contents: 1 * Magnetic Bluetooth Speaker 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.