Rolton K500 Bluetooth Audio Speaker Megaphone Voice Amplifier Support FM TF Recording (Black)

Overview & Features

. Bluetooth wireless transmission, more convenient to use. Thin and light, compact, 158 grams, thickness of 3.9 cm or so. High-fidelity microphone, double-layer PVC line, strong resistance to pulling, good shielding. Frequency intelligent amplifier system: in the radio state, the amplifier automatically turns into AB class anti-interference amplification mode; in other modes, the amplifier turns into D class power-saving mode. Support MP3 / WMA / WAV lossless format. Support 32GB TF card expansion / FM radio station radio (TF card not included). One-touch recording and playback (please insert a wired microphone for recording). Note: The model to achieve the wireless function, you need to buy a wireless microphone separately.. Parameters:. Basic functions: music / radio / microphone. Material process: UV process + ABS plastic. Rated power: 5W. Separation: 80dB. Distortion: 1% (3.7V, 1KHz, 1W). Signal to noise ratio: 83dB. Working voltage: DC3.7V. Charging voltage: DC5V. Li-ion battery capacity: 2200mAH. Impedance: 2Ω. Display: LED display. Speaker: 2.5 inches x 1. Audio format: MP3 / WMA / WAV. Firmware upgrade: Yes. Machine volume: 85mmX39mX117mm. Working temperature: -5-40 degrees Celsius.. Package includes:. 1 x audio speaker. 1 x wired headset microphone. 1 x waistband. 1 x usb data cable. 1 x instruction manual..

Technical Specifications