Compatible Models: 65358-01 Battery for Plantronics CS-50, CS-55, CBP50, CS50-USB, CS-60, 64327-01, 64399-01, HL10, PL-64399-01
Safety protection: Using battery lithium protection circuit board, prevent over-charging, over-discharging, over-flowing
High Capacity: 250mAh higher capacity than any other brand on amazon, Voltage: 3.7V
Dimension: 4.4mm*20.3mm*37mm
Lithium Polymer Rechargeable Battery for Plantronics Wireless Headset