Shure SE846 Sound-isolating Quad-driver Earphones Features: Unparalleled listening experience with spacious sound and rich bass Includes 1/8" stereo audio cable, universal 1/8" cable for iOS and Android devices, and Bluetooth communication cable 4 balanced-armature drivers in a 3-way configuration Groundbreaking lowpass filter design delivers deeper bass without affecting midrange clarity Detachable, formable wire allows easy replacement, personalized comfort, and additional functionality Sound-isolating sleeves block outside noise and provide a custom fit Removable nozzles and detachable cable protect your investment 3 included nozzle inserts (balanced, warm, and bright) let you customize your frequency response Sweat-proof and built like a tank to Shure's exacting professional standards Type: In-ear Drivers: Four high-definition Frequency Range: 15Hz-20khz Impedance: 9 ohms Noise Attenuation: 37dB Sensitivity: 114dB SPL @ 1mW Wireless: Bluetooth v5.0 Cable Length: 64" Replaceable Cable: Yes Plug Type: 1/8", 1/4" adapter Features: 3-button Remote, Built-in Mic Color: Black Power: Rechargeable via USB Manufacturer Part Number: SE846-K+BT2