Fits the following models:

• AKG Kopfhörer: AP97 A / Balance K 122 AFC / Balance K 216 IR

• Sennheiser: Audioport A200 Set
• Sennheiser: HDI 302 / HDI 380
• Sennheiser: HDR 4 / HDR 6 / HDR 6-9 / HDR 8 / HDR 8-9 / HDR 30 / HDR 40 / HDR 45 / HDR 60 / HDR 65 / HDR 80 / HDR 85
• Sennheiser: IS 150 / IS 300 / IS 380
• Sennheiser: RI 50 / RI 55 / RI 150 / RI 250 / RI 250-J / RI 250-S / RI 300 / RI 810 / RI 810 S
• Sennheiser: RR 820 / RR 820 S / RR 2400
• Sennheiser: RS 4 / RS 6 / RS 6-9 / RS 8 / RS 8-9 / RS 30 / RS 40 / RS 45 / RS 60 / RS 65 / RS 80 / RS 85 / RS 400 / RS 2400
• Sennheiser: Set 20 / Set 50 TV / Set 55 TV / Set 250 / Set 250-J / Set 250-S / Set 250S / Set 500 / Set 810 / Set 810S / Set 810 S / Set 820 / Set 820S / Set 820 S / Set 2500

• Williams Sound: RX237 / RX238 / RX239
• Williams Sound: WIR 237 / WIR 238 / WIR 239
• Williams Sound: WIRRX16 / WIRRX238

Specifications:

• Type: NiMH
• Capacity: 60mAh
• Voltage: 2,4V
• Weight: 10g
• Dimensions: 15.0 × 20.0 × 35.0 mm
• Replaces the following original battery: Sennheiser BA 150, BA 151, BA 152 / Williams Sound BAT AP97A