Product Description Product Name: Ultra Slim Bluetooth Speaker Output power: 3W BT Version: V4.0 Unit size: 143x22x74mm Modes: BT,AUX,TF Card, FM Radio, Soothing White Nosie Drivers: 40mm Battery: 500mAh Product Material: metallicandiron net Connection: Micro-USB Input or TF card port or headphone port or Aux in Features: -Ultra-thin body, the speaker is small and light, and there is no power cord fetters, you can hear where you go, and carry it with you without pressure -The pocket speaker is small and convenient and can be easily put in your pocket -Dazzling lighting, dazzling luminous light circle, flashing synchronously with music when playing music, realizing the perfect combination of music and lighting. Creative mobile phone holder, watch movies without blocking subtitles, the depth of the groove just fits the phone Lanyard design, easy to carry specification: Bluetooth-compatible version: 4.2 Bluetooth receiving distance: 10m Audio source: TF, AUX, BIuetooth, FM Radio Power supply: DC5V or 0.5A, built-in 500mAh dual-guaranteed lithium batteryProduct size: 143x74x22mm Product weight: 138g Package Included:1xspeaker Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.