Fangrui Product Details Battery Capacity [mah]: 1200 Number Of Devices That Can Be Connected Simultaneously: 1 Maximum Wireless Range [m]: Less Than 10m Sound Mode: High-resolution Sound Mode Category: Speaker Usage: Home Bluetooth Version: 5.0 Impedance: Other Voice Control: None Frequency Range: Other Display: Yes Waterproof: None Support App: No Support Memory Card: Yes Play Function: Mp3 Built-in Microphone: None Audio Frequency Division: Full Frequency Number Of Speaker Boxes: 1 Power Supply: Usb Channel: 1.1 Battery: Yes Communication Method: Bluetooth Speaker Type: Portable Function: Clock, Dual Alarm Clock, Tf Card Playback Model: Bluetooth Speaker Portable Dual Alarm Clock Colour:black Material:plastic Package Contents: 1 X Clock 1 X Data 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.