Maestraudio MA910SB Smoke Gray [10mm Graphene-Coated Dynamic Driver Earphones] Passive Ceramic-Coated Tweeter with RST & HDSS, Made in Japan, Approx.

■The adoption of a 4.4mm balanced plug and tuning for balanced connections achieve further improved expressiveness. A universal IEM designed for a compact, lightweight design with a wide soundstage. Equipped with a newly developed graphene-coated dynamic driver ■Equipped with a passive ceramic-coated tweeter [RST] and acoustic correction device [HDSS] born from a new concept ■Uses a hybrid cable made of silver-coated OFC and OFC. 4.4mm balanced L-shaped plug ■Includes original earpieces [iSep01] in four sizes (S/MS/M/L) that use slightly softer silicone rubber for an excellent fit with less strain even during extended use. Also included are ear hooks, a genuine leather cord reel, and a carrying pouch. ●Shape: Universal IEM type (ear hook type)●Drivers: Hybrid type: 10mm diameter graphene coated dynamic driver x 1, 9mm diameter RST (Reactive Sympathetic Tweeter) x 1●Impedance: 16Ω●Sensitivity: 102dB●Frequency response: 20Hz to 40KHz●Cable length: 1.2m (4.4mm balanced L-shaped plug)●Accessories: iSep01 earpieces (S/MS/M/L), ear hooks, genuine leather cord reel, carrying pouch●Country of manufacture: Japan