Rolton K500 Bluetooth Audio Speaker Megaphone Voice Amplifier Support FM TF Recording, K500

1. Bluetooth wireless transmission, more convenient to use2. Thin and light, compact, 158 grams, thickness of 3.9 cm or so3. High-fidelity microphone, double-layer PVC line, strong resistance to pulling, good shielding4. 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 mode5. Support MP3 / WMA / WAV lossless format6. 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 / microphone2. Material process: UV process + ABS plastic3. Rated power: 5W4. Separation: 80dB5. Distortion: 1% (3.7V, 1KHz, 1W)6. Signal to noise ratio: 83dB7. Working voltage: DC3.7V8. Charging voltage: DC5V9. Li-ion battery capacity: 2200mAH10. Impedance: 2Ω11. Display: LED display12. Speaker: 2.5 inches x 113. Audio format: MP3 / WMA / WAV14. Firmware upgrade: Yes15. Machine volume: 85mmX39mX117mm16. Working temperature: -5-40 degrees CelsiusPackage includes:1 x audio speaker1 x wired headset microphone1 x waistband1 x usb data cable1 x instruction manualSpecification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 18cm * 14cm * 8cm / 7.09inch * 5.51inch * 3.15inch Qty per Carton 98 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 98 pcs = 17346 pcs40HQ: 412 cartons * 98 pcs = 40376 pcs