**Specifications:**

**Brand:** Tangmai

**Model:** TONEMACH9

**Bluetooth Version:** V5.4

**Audio Decoding:** SBC/AAC

**Effective Range:** 10 meters (unobstructed)

**Supported Protocols:** AAC/MP4/M4A/WAV

**Speaker Impedance:** 16Ω

**Speaker Diameter:** 36mm

**Frequency Response:** 20Hz-20kHz

**Charging Time:** 1.5 hours

**Features:**

First batch of influencers tested

Over 100,000 likes

NewLook, Ge, musir, atmospheric sense, Meirade outfit

100 ATTITUDES TO LIFE

Industrial design with retro and futuristic elements

Exclusive Circular Boundary Technology Aesthetics

Streamlined aesthetic design

Exclusive acoustic technology for superior sound quality

M-Sound acoustic architecture

iEar technology for immersive sound experience

Ergonomic design for comfort

Lightweight at 135g

Up to 80 hours of battery life

AI-powered noise-cancelling for clear calls

Hi-Fi audio quality

Comfortable fit for Chinese head shapes

iEar technology for anti-aging and comfort

Retro-futuristic design with modern metal texture

AI adaptive noise-cancelling for clear calls

Bluetooth 5.4 with low latency and dual-mode support

E-LOCK energy-saving technology for longer battery life

Circular key design for easy control

Multiple functions accessible through buttons

36 international certifications

High-quality over-ear headphones

**Certifications:**

VAQST

MA

Inspection Report

External Design Patent Certificate

Appearance Design Patent

National Quality Inspection Report

RoHS Certification

*Data sourced from Tangmai Laboratory.