The K31 Pro Collar Clip Button Microphone is a compact wireless lavalier microphone designed for content creators, vloggers, live streamers, interviewers, teachers, and mobile recording. It uses 2.4GHz digital wireless transmission to deliver clear audio with low interference and supports plug-and-play recording without additional apps.

• Model: K31 Pro
• Microphone Type: Wireless Lavalier / Collar Clip Microphone
• Wireless Technology: 2.4GHz Adaptive Frequency Hopping
• Pickup Pattern: Omnidirectional
• Frequency Response: 20Hz – 20kHz
• Sampling Rate: 48kHz
• Transmission Distance: Up to 100m (open area), around 50m with obstacles
• Latency: Low-latency wireless transmission
• Battery Life: Approx. 4–5 hours per transmitter
• Charging Time: Transmitter: approx. 1.5 hours; Charging case: approx. 2 hours
• Charging Case: Supports charging transmitters multiple times
• Receiver Compatibility: USB Type-C & Lightning dual receiver options
• Transmitter Size: Approx. 29.7 × 29.7 × 14.26mm
• Charging Case Size: Approx. 81.3 × 50.2 × 39.8mm