Bardzo mało używany, przez 38-mio latka, bardzo mocno dbany. Nie rozładowywany do niskich poziomów akumulatora, nie ładowany do pełna.
W pełni sprawny, bez wad, zarówno jeśli chodzi o dźwięk jak i budowę.
Zmieniam tylko ze względu na wiek i wychowanie na dużych, mocnych głośnikach.

Features:
30W Powerful Output, Double Drivers-- Indulge yourself in concert-like feast filled with deeply enhanced bass and sense rich details.
True Wireless Stereo Sound-- Pair 2 speakers wirelessly for double fun.
bluetooth V5.0, Low Frequency-- Enhance clarity, boost the sound transmission and accuracy.

IPX6 Waterproof-- Save component from water corrosion.
Multiple Connections-- bluetooth, TF card and AUX playback, find the best pairing way.
Compact, Portable to Carry-- The BW-WA4 portable bluetooth speaker easily stows away in your backpack, enjoy music when climbing, biking, camping, or at the beach.

Specifications:
Brand BlitzWolf®
Model BW-WA4
Color Black
Net Weight (g) about 689g
Dimensions 215x 55x 68mm
Maximum Power 30W
Microphone Yes
bluetooth Version V5.0
Supported Profiles HSP/HFP/A2DP/AVRCP
Transmission Distance 33 feet (10m)
Impedance 4Ω±15%
Frequency Response 80Hz—18000Hz
Battery Capacity 3600mAh
Charging Time (h) About 3 hours
Music Time 6 (50% volume) hours
Call Time (h) 20 (70% volume) hours
Input Voltage 5V/2.1A
Waterproof IPX6
Charging interface Type-C
Package Included:
1* BlitzWolf® BW-WA4 30W Wireless Speaker Portable bluetooth Speaker
1* Type-C Charging Cable
1* 3.5mm Audio Cable
1* Manual