Feature: Play Video Battery: Yes Intelligent Personal Assistant: None Remote Control: No Waterproof: No Channels: 2 (2.0) Audio Crossover: Full-Range Playback Function: Radio,MP3 Wi-Fi Music: Music,iHeartRadio Output Power: 4W Power Source: Battery Support APP: Yes Support Memory Card: Yes Built-in Microphone: Yes Frequency Range: 20Hz-20KHz Support Apt-x: No Voice Control: No PMPO: 3W Speaker Type: Portable Communication: USB Number of Loudspeaker Enclosure: 2 Executive standard: Bluetooth 4.2 Transmission range: 10 meters 100% quality Portable Bluetooth speaker, wired troubles Support Bluetooth hands-free calling Support automatic memory of the last piece of music Enjoy unlimited stereo music anytime, anywhere. Small and exquisite, the speaker is at your fingertips Suitable for indoor and outdoor use Executive standard: Bluetooth 4.2 Speaker: 52MM, external magnetic 43W Frequency response: 20HZ-20KHZ Transmission range: 10 meters Sound and noise ratio 80dB Power supply mode: built-in battery miniUSB Battery: steel case 3.7V / 400MA colour:black Material:Plastic + linen size:11.3*4.3*9.3cm Package Contents: 1*Bluetooth speaker 1*USB charging cable Only the above package content, other products are not included. Note: Light 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.