Synergy Digital Speaker Battery, Compatible with Altec Lansing INR18650-3S Speaker Battery (Li-ion, 11.1V, 2600mAh)
Specifications:
Compatible with Altec Lansing Speaker(s): IMW888SIMW889N-BLKC, IMW889, IMW889N, INR18650-3S, Super LifeJacket Jolt Rugged