WS-1818 LED Light Flashing Microphone Self-contained Audio Bluetooth Wireless Microphone1. Reverb mode: echo in effect reverb2. Material: ABS, metal3. Charging power: DC5V4. Battery capacity: 1200mAh5. Use time: about 3-6h6. Pickup: condenser type7. Sound channel: 2.18. Frequency range: 100Hz-10KHz9. Bluetooth: 5.010. Size: about 24.5 x 7.7 x 6cm11. Weight: about 400gFeatures:1 Bluetooth 5.0 wireless connection, easy to operate2. Multiple modes of playback, memory card headphone audio connection3. Multi-layer noise reduction effect, effectively reduce noise murmur, the original sound more prominent4. Three-layer filter head, metal frame, mid-dense network, reverberant sound5. Dual side speakers, 360 degrees stereo around6. Compatible with iOS Android system software, support for major Karaoke platform