Klein Tools Cat. No. AESEM1S Earmuffs are engineered to incorporate both Situational Awareness and Bluetooth® technologies for connectivity to surroundings and music. The dual-knob design featuring unique grooves for easy identification enables users to precisely adjust their Situational Awareness or Bluetooth® volumes. Ergonomically designed vented headband provides cool comfort for all-day wear. These earmuffs charge in 2 hours, providing 25 hours of runtime.

• Earmuffs with SMART SENSE allows users to safely listen to their surrounding environment and clearly communicate with co-workers
• Enjoy premium audio quality with rich bass, clear mids and crisp treble through the latest Bluetooth® 5.1 technology
• USB-C rechargeable battery offers up to 25 hours of runtime on a single charge
• Noise Reduction Rating (NRR) of 23 protects and prolongs your hearing
• Dual-knob design with unique grooves enables independent control of SMART SENSE and Bluetooth® volume
• Vented headband provides cool comfort in the hot summer months
• Soft memory-foam ear cushions designed for all-day use
• Noise cancelling microphones eliminate background for crystal clear calls in loud environments
• Durable construction with 6.6-Foot (2 m) drop protection and IPX4 rating

• IP Rating: IPX4
• Included: USB-A to USB-C Charging Cable; Carrying Bag
• Connectivity: BT 5.1, Wireless Range: 32.8' (10 m)
• Batteries: Lithium-Ion
• Overall Length: 3.9'' (9.9 cm)
• Charging Time: Approx. 2 hr
• Indoor/Outdoor: Indoor/Outdoor
• Application: Construction Sites, Factories, Airport Grounds, Hunting, Distribution Warehouses, Arborist, Racing, Range Instructors
• Battery Life: 25 hr
• Drop Protection: 6.6' (2 m)
• Color: Orange, Black, Gray
• Overall Height: 7.03'' (17.9 cm)
• Overall Width: 6.18'' (15.7 cm)
• Special Features: Situational Awareness, Bluetooth, 23NRR, Dual-Volume Knobs, Hands-Free Calling, Vented Headband, Environmental Noise Cancelling Microphones
• Enclosure Material: Earcups: ABS + PC; Headband: POM + TPE
• Maximum Volume: 88 dBA
• Weight: 15.45 oz (438 g)
• Material: Earcups: ABS + PC; Headband: POM + TPE
• Type: Situational Awareness Bluetooth Earmuffs

(1) Klein Tools AESEM1S Situational Awareness BT Earmuffs