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

1. Bluetooth wireless transmission, more convenient to use
2. Thin and light, compact, 158 grams, thickness of 3.9 cm or so
3. High-fidelity microphone, double-layer PVC line, strong resistance to pulling, good shielding
4. 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
5. Support MP3 / WMA / WAV lossless format
6. Support 32GB TF card expansion / FM radio station radio (TF card not included)
7. One-touch recording and playback (please insert a wired microphone for recording)
8. Note: The model to achieve the wireless function, you need to buy a wireless microphone separately.

Parameters:
1. Basic functions: music / radio / microphone
2. Material process: UV process + ABS plastic
3. Rated power: 5W
4. Separation: 80dB
5. Distortion: 1% (3.7V, 1KHz, 1W)
6. Signal to noise ratio: 83dB
7. Working voltage: DC3.7V
8. Charging voltage: DC5V
9. Li-ion battery capacity: 2200mAH
10. Impedance: 2
11. Display: LED display
12. Speaker: 2.5 inches x 1
13. Audio format: MP3 / WMA / WAV
14. Firmware upgrade: Yes
15. Machine volume: 85mmX39mX117mm
16. 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