Wearable Neck Laser Device650nm Laser Technology: Utilizes 650nm wavelength for targeted laser therapy. Dual-Purpose Design: Suitable for both ear canal and nasal cavity application.Product detailsRechargeable Battery: Built-in 500mAh battery for cordless convenience. Lightweight Construction: Weighs only 110 grams for comfortable wear.Check the available optionsCheck the technical details shown for Wearable Neck Laser Device, especially power, connection type and model compatibility. The supplied version follows the option selected at checkout.Compatibility checkFor Wearable Neck Laser Device, compare the stated connector, power and model information with the device you intend to use. Check whether different variants include different features or accessories, and choose the exact compatible option before completing the order.