REMAX RB-M9 HIFI BLUETOOTH SPEAKERBuilt-in 1800mAh lithium batteryMaterial: ABS+Fabric; The thinnest part: 20mmOutput: 3.5W*2; Sensitivity: 950mvFrequency range: 20Hz-18KHzSpeaker frequency Range: 150Hz-18KHzSensitivity: 80db±2db; Signal noise ratio: ≥70dB..

Remax RB-M11 Bluetooth SpeakerRemax RB-M11 Bluetooth Speaker delivers great stereo sound and enhanced bass, low distortion at maximum volume, distinct mids, and highs. It combines penetrating the sound blended fabric, hand processing, retro and literary, which will make your room more attractive. In this Bluetooth Speaker, it has a Bluetooth version is V4.2, the battery is 1500mAh/3.7V (Rechargeable Lithium Battery;3 watts), PSNR is 82dB, standby Time is ≥7 hours, playtime is ≥3h. This RB-M11 Bluetooth Speaker is able to connect with most Bluetooth-enabled devices like smartphones, tablets, laptops, desktop computers, and more. This speaker’s connectivity is simple and Enables you to recognize your device easily. This speaker has the ability to connect wireless up to 10 meters away from your place...