Klein Tools
Klein Tools AESEM1S Electronic Hearing Protection Earmuff
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UPC: 92644693946
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Hear what matters and protect what counts. The AESEM1S combines advanced Smart Sense situational awareness with premium Bluetooth 5.1 audio so you can follow conversations, stay aware of worksite sounds, and enjoy music with clear mids and deep bass — all while preserving hearing with a 23 NRR. Engineered for professionals, the dual-knob layout gives fast, tactile control to independently tune Smart Sense and Bluetooth volumes without guessing.
Comfort meets durability: a vented headband keeps you cool during long shifts, memory-foam ear cushions seal noise where it matters, and rugged construction delivers 6.6-foot drop protection plus an IPX4 water-resistant rating. A long-lasting USB-C rechargeable battery provides up to 25 hours of use so focus stays uninterrupted through the day.
Built by Klein Tools — a family-owned brand trusted since 1857 — the AESEM1S is crafted for the demands of professionals who need reliable situational awareness, precise audio control, and proven protection all in one smart, work-ready device.
| Brand | Klein Tools |
| Model | AESEM1S |
| Smart Sense | Advanced situational awareness amplifies faint sounds and reduces high impulse or continuous noise to safe levels |
| Audio | Premium audio with deep bass, clear mids and crisp treble via Bluetooth 5.1 |
| Hearing Protection | Noise Reduction Rating (NRR) 23 |
| Controls | Dual-knob design for independent Smart Sense and Bluetooth volume adjustment |
| Battery | USB-C rechargeable battery with up to 25 hours runtime |
| Comfort | Vented headband and soft memory-foam ear cushions for extended wear |
| Durability | 6.6-foot drop protection and IPX4 water-resistant rating |