Frequency response range: 100HZ-20KHZ; Signal to noise ratio ≥ 75dB; Number of speakers: 2; Effective distance 10 meters; Hign-concerned Chemical: None; Weight[g]: 0.95g; Input/Output: Coaxial; Battery Capacity[mAh]: 3000mAh Number of devices connectable simultaneously: 1 Maximum wireless range[m]: 10m-20m; Touch Screen: No; Sound Mode: Hi-Res Sound Mode,Extra Mode; Category: Speakers; Use: Home; Sabwoofer cabinet Material: Plastic; Woofer/Widerange Material: other Mid-range Material: other; Tweeter Material: other; Tweeter type: PIEZO; Acoustic enclosure: HORN; Control: Volume control; Codecs: Apt-X HD; Bluetooth Version: 5.0; Input Power(W): Less than 25 W Active Noise-Cancellation: PASSIVE Impedance: 2-4 Ohm Wi-Fi Music: Music Voice Control: No Frequency Range: 100Hz-20KHz Display Screen: Yes Waterproof: No Support APP: Yes Playback Function: Radio,mp3,WAV Inbox adaptor: Yes Support Apt-x: Yes Intelligent Personal Assistant: 's M Built-in Microphone: No Audio Crossover: Full-Range Number of Loudspeaker Enclosure: 1 PMPO: 20W Channels: 2 (2.0) Feature: Phone Function,Play Video Battery: Yes Communication: AUX,USB,Bluetooth Speaker Type: Portable Power Source: Battery,USB Remote Control: No Output Voltage: Other Support Memory Card: Yes Control type: Volume control Sound Mode: Extra Mode,Standard Mode,Stereo Sound Mode function5: Long Range function4: TF card playback function3: Multi mode listening function2: FM audio function1: AUX mode Color: Red Material: plastic Package Contents: 1 * Bluetooth speaker 1 * Charging cable 1 * English Manual 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.