This is the Genuine Plantronics (not after market) Replacement battery for any of the Plantronics SupraPlus Wireless Headset Systems (Plantronics C052, CO52). Ships with Removal Tool

Compatibility:

• Plantronics CS351
• Plantronics CS351N
• Plantronics CS361
• Plantronics CS361N
• Plantronics CS510 (C052, CO52)
• Plantronics CS520 (C052, CO52)
• Plantronics CS510-XD (C052-XD, CO52-XD)
• Plantronics CS520-XD (C052-XD, CO52-XD)
• Plantronics WO300 Savi Office Over-the-Head Wireless Headset
• Plantronics WO350 Savi Office Binaural Wireless Headset
• Plantronics Savi W710 Wireless Headset, Monaural Headset
• Plantronics Savi W720 Wireless Headset, Binaural Headset

Key Features:
 

• Up to 10 hours of continuous talk time.**
• Lithium Ion (Li-on) 3.75v, 190mAh
• part# 64399-03 (also marked as part# 65358-01 on the battery)
• CS510, CS520 system base labeled as C052 or C052