1 3S 1P without BMS. 1 3S 1P with BMS. 1 3S2P with 40A BMS. 1 3S2P with 80A BMS. 1 3S2P without BMS. 1 3S4P without BMS. The list price is the price of a circuit board or a battery box. Ear Pads Cushion for Sennheiser RS120/HDR120/RS100/RS115/RS117/RS119 Headphones.
eBay