A grooming kit can feel like a shortcut to a cleaner routine—or become a pouch of attachments you never touch. The Wahl Slate 9864 puts four interchangeable heads around one rechargeable handle. The useful question is which jobs you want to combine, not how many accessories look impressive in the box.
Begin with your usual beard length
The T-blade and guide combs cover the everyday trimming role. Choose a familiar length conservatively and follow the instructions rather than expecting the first pass to reproduce a barber’s work. The other heads address different tasks: detail work, ear-and-nose trimming and foil shaving. Look at the attachment photographs to understand the changeovers before deciding whether an all-in-one kit suits you.
A foil head offers a different type of finish from a guarded beard trim. Neither guarantees comfortable results for every skin type. Avoid irritated or damaged skin, keep the appropriate guards fitted and follow the supplied instructions for each head. This guide does not offer medical advice or claim irritation-free shaving.
Cordless convenience still involves care
The maker lists a 3.5-hour runtime for this Slate model, plus a quick-charge option. Those are maker specifications, not measurements from our testing. For travel, the stated worldwide voltage is useful, but inspect the actual adapter label and plug supplied by your seller. Electrical compatibility and a plug that fits your destination are separate checks.
Clean the relevant head as directed, maintain the blade where required and use the included storage items to keep small parts together. Do not assume that the entire handle can be submerged or used in a shower because another Wahl product can.
A simpler trimmer may be enough
If you keep one beard length and do not need the other heads, fewer components can make a routine easier. Choose the 9864 for its combined grooming roles and compatible accessories, not for a professional-results promise. Confirm the Slate Lithium Ion 2.0 model and current box contents. Reference images describe this kit; they do not document our personal use.
