Main Features:
- Retro design with handcrafted leather and brushed aluminum panel・ easy to carry anywhere- 3 speakers・ two dome tweeters and two 3.5 inches kevlar middle-low frequence speakers create a powerful sound effect for you- Built-in 10400mAh li-ion battery support 8hrs playing time and it can be fully charged for only 2hrs- Play music from your devices or stream from online sources- Supports multi-room play and separate L / R channels- Compatible with iOS / Android / Windows / Mac OS- Can be controlled through GGMM app gives you an unique feeling- No soud loss with Wi-Fi or Bluetooth during transmission to HIFI deivces- Streaming online music services like Spotify・ Pandora・ iHeart Radio- Through GGMM app you can fully control your music playing


Brands: GGMM
Model: M4
Design: Cool・Multifunctional
Compatible with: Laptop・Mobile phone・PC
Supports: Bluetooth・WiFi Connected
Connection: Wireless
Interface: 3.5mm Audio
Audio Source: Bluetooth Enabled Devices・WiFi Enabled Devices
Speaker Impedance: 4 ohm


Bluetooth Version: V4.0
Number of Speakers: 3
Sound channel: Mono
Power Output: 40W
Standby time: 90 days
Freq: 60Hz-20KHz
S/N: More than 85dB
Distortion: 0.5pct and less


Working Voltage: 14.4V
Input: 18V 3A
Battery Capacity: 10400mAh
Charging Time: 2hrs
Working Time: 8hrs


Battery Type: lithium-ion battery


3.992 Package weight: 4.044 kg
Product size (L x W x H): 35.00 x 11.00 x 15.80 cm / 13.78 x 4.33 x 6.22 inches
Package size (L x W x H): 39.00 x 21.50 x 21.00 cm / 15.35 x 8.46 x 8.27 inches


Package Contents: 1 x M4 Speaker・ 1 x Leather Strap・ 1 x AC Charger Adapter・ 1 x AUX Cable・ 1 x Multi-language Setup Guide