Sunnymark K1-MAX Wireless Lavalier Microphone Bluetooth 6.0 20m Range

Sunnymark K1-MAX Wireless Lavalier System

The Sunnymark K1-MAX is a portable wireless voice amplifier designed for teachers, tour guides and meeting presenters who need hands-free speech reinforcement. It combines a lightweight lavalier microphone with a compact speaker unit that operates on a rechargeable battery. The system uses Bluetooth 6.0 to pair quickly with phones or tablets for audio playback or recording. It is intended for indoor and outdoor voice projection rather than studio recording or musical performance.

Setup checks before ordering

Verify that your mobile device supports Bluetooth 6.0 or at least Bluetooth 5.3 to maintain the advertised low-latency link. Ensure the speaker unit can be charged via its supplied cable and that a USB power source is available for the three-hour recharge cycle. Confirm the Lightning output matches your recording or PA input if you plan to connect the receiver directly. The microphone weighs 20 grams, so check that the clip suits your clothing style for extended wear.

Behaviour under sustained load

The amplifier runs for up to 17 hours on a single charge while the lavalier microphone operates for 67 hours, allowing full-day sessions without recharging. Bluetooth 6.0 provides a stable connection out to 20 metres with stronger anti-interference than Bluetooth 5.3, so audio stays aligned during continuous movement. The 2000 mAh battery sustains output through long classes or tours, and the anti-feedback circuit keeps the signal clean at consistent speaking volumes. Heat and compression artefacts do not accumulate during typical multi-hour use.