1. Long-lasting battery life: Our rechargeable wireless microphones provide long uninterrupted battery life, perfect for long events and parties 2. Versatile: Designed for a wide range of uses, these microphones are ideal for karaoke, public speaking, and home entertainment systems to enhance your audio experience 3. Advanced connectivity: Using advanced wireless technology, a stable and reliable wireless connection ensures clear sound quality at all times 4. Package includes: 2 wireless microphones, a compact and portable receiver, charging cable, everything you need for quick setup and easy use Working distance: equal 50M Signal-to-noise ratio:72DB Distortion:0.5% Working temperature:-10°C-50°C Working voltage:3.7V (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: Plastic+Metal Package Contents: 1 * Microphone Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.