New 700mAh Li Ploymer AHB413645PCT Replacement Battery For Sennheiser PXC 550 Accumulator Batterie 3 wire Plug +tools|Mobile Phone Batteries| - AliExpress
Batteria per Sennheiser
Batteria ba 15 ba150 compatibile con sennheiser rs 45
Amazon.com: Sennheiser BA300 Lithium Polymer Rechargeable Battery For Sennheiser Set 900, Set 840, Ri 900 : Electronics
Sennheiser EW 100 ENG G4 Camera-Mount Wireless Microphone System (G: 566 to 608 MHz) with SKB iSeries Waterproof Case & Charger (4 NiMH Battery) Bundle - Walmart.com