Nano VIP Headphone Batteries – Sony 1.55V Original Sony batteries for earphones, size 337 and voltage 1.55V. 🔋 Suitable for Nano VIP headphones and headphones that use a size 337 battery. 📦 The batteries are new. ✅ Excellent quality and good operating life. Battery 20 SAR, 10 batteries 85 SAR For contact and inquiries, you are welcome.